Sequence Database

A database with 899757 machine generated integer and decimal sequences.

Displaying result 0-99 of total 93852. [0] [1] [2] [3] [4] ... [938]

Sequence f01q4ekd0c3wl

1, 2, 3, 2, 5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, more...

integer, non-monotonic, +, A006530

a(n)=gpf(n)
gpf(n)=greatest prime factor of n
n≥1
2 operations
Prime

Sequence c5dglrcjdavhh

-1, -2, -3, -2, -5, -3, -7, -2, -3, -5, -11, -3, -13, -7, -5, -2, -17, -3, -19, -5, -7, -11, -23, -3, -5, -13, -3, -7, -29, -5, -31, -2, -11, -17, -7, -3, -37, -19, -13, -5, -41, -7, -43, -11, -5, -23, -47, -3, -7, -5, more...

integer, non-monotonic, -

a(n)=-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence 3jm3rablurcpn

1, 4, 9, 4, 25, 9, 49, 4, 9, 25, 121, 9, 169, 49, 25, 4, 289, 9, 361, 25, 49, 121, 529, 9, 25, 169, 9, 49, 841, 25, 961, 4, 121, 289, 49, 9, 1369, 361, 169, 25, 1681, 49, 1849, 121, 25, 529, 2209, 9, 49, 25, more...

integer, non-monotonic, +

a(n)=gpf(n)²
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence 4vuj3dinq5a1m

1, 1, 2, 1, 3, 2, 3, 1, 2, 3, 5, 2, 5, 3, 2, 1, 5, 2, 7, 3, 2, 5, 7, 2, 7, 5, 2, 3, 7, 2, 5, 1, 3, 5, 3, 2, 11, 7, 5, 3, 11, 2, 13, 5, 3, 7, 3, 2, 3, 7, more...

integer, non-monotonic, +

a(n)=gpf(stern(n))
stern(n)=Stern-Brocot sequence
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence 4pmnba10tdooo

1, 1, 2, 1, 3, 2, 3, 1, 2, 3, 5, 2, 5, 3, 3, 1, 5, 2, 7, 3, 3, 5, 7, 2, 3, 5, 2, 3, 7, 3, 5, 1, 5, 5, 3, 2, 11, 7, 5, 3, 11, 3, 13, 5, 3, 7, 9, 2, 3, 3, more...

integer, non-monotonic, +

a(n)=stern(gpf(n))
gpf(n)=greatest prime factor of n
stern(n)=Stern-Brocot sequence
n≥1
3 operations
Prime

Sequence 5btgehfmqy02l

-9, -8, -7, -8, -5, -7, -3, -8, -7, -5, 1, -7, 3, -3, -5, -8, 7, -7, 9, -5, -3, 1, 13, -7, -5, 3, -7, -3, 19, -5, 21, -8, 1, 7, -3, -7, 27, 9, 3, -5, 31, -3, 33, 1, -5, 13, 37, -7, -3, -5, more...

integer, non-monotonic, +-

a(n)=gpf(n)-10
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence v1jaqvqusezso

-8, -7, -6, -7, -4, -6, -2, -7, -6, -4, 2, -6, 4, -2, -4, -7, 8, -6, 10, -4, -2, 2, 14, -6, -4, 4, -6, -2, 20, -4, 22, -7, 2, 8, -2, -6, 28, 10, 4, -4, 32, -2, 34, 2, -4, 14, 38, -6, -2, -4, more...

integer, non-monotonic, +-

a(n)=gpf(n)-9
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tv533nxhtonih

-7, -6, -5, -6, -3, -5, -1, -6, -5, -3, 3, -5, 5, -1, -3, -6, 9, -5, 11, -3, -1, 3, 15, -5, -3, 5, -5, -1, 21, -3, 23, -6, 3, 9, -1, -5, 29, 11, 5, -3, 33, -1, 35, 3, -3, 15, 39, -5, -1, -3, more...

integer, non-monotonic, +-

a(n)=gpf(n)-8
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence sin4tmv0qlimi

-6, -5, -4, -5, -2, -4, 0, -5, -4, -2, 4, -4, 6, 0, -2, -5, 10, -4, 12, -2, 0, 4, 16, -4, -2, 6, -4, 0, 22, -2, 24, -5, 4, 10, 0, -4, 30, 12, 6, -2, 34, 0, 36, 4, -2, 16, 40, -4, 0, -2, more...

integer, non-monotonic, +-

a(n)=gpf(n)-7
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence hgqrvrjse3nrd

-5, -4, -3, -4, -1, -3, 1, -4, -3, -1, 5, -3, 7, 1, -1, -4, 11, -3, 13, -1, 1, 5, 17, -3, -1, 7, -3, 1, 23, -1, 25, -4, 5, 11, 1, -3, 31, 13, 7, -1, 35, 1, 37, 5, -1, 17, 41, -3, 1, -1, more...

integer, non-monotonic, +-

a(n)=gpf(n)-6
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 3ahqtzw1yljam

-4, -3, -2, -3, 0, -2, 2, -3, -2, 0, 6, -2, 8, 2, 0, -3, 12, -2, 14, 0, 2, 6, 18, -2, 0, 8, -2, 2, 24, 0, 26, -3, 6, 12, 2, -2, 32, 14, 8, 0, 36, 2, 38, 6, 0, 18, 42, -2, 2, 0, more...

integer, non-monotonic, +-

a(n)=gpf(n)-5
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence s42kl0x0nywjf

-3, -2, -1, -2, 1, -1, 3, -2, -1, 1, 7, -1, 9, 3, 1, -2, 13, -1, 15, 1, 3, 7, 19, -1, 1, 9, -1, 3, 25, 1, 27, -2, 7, 13, 3, -1, 33, 15, 9, 1, 37, 3, 39, 7, 1, 19, 43, -1, 3, 1, more...

integer, non-monotonic, +-

a(n)=gpf(n)-4
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence d2izs34taj1hk

-2.1415926536, -1.1415926536, -0.1415926536, -1.1415926536, 1.8584073464, -0.1415926536, 3.8584073464, -1.1415926536, -0.1415926536, 1.8584073464, 7.8584073464, -0.1415926536, 9.8584073464, 3.8584073464, 1.8584073464, -1.1415926536, 13.8584073464, -0.1415926536, 15.8584073464, 1.8584073464, 3.8584073464, 7.8584073464, 19.8584073464, -0.1415926536, 1.8584073464, more...

decimal, non-monotonic, +-

a(n)=gpf(n)-π
gpf(n)=greatest prime factor of n
π=3.141...
n≥1
4 operations
Prime

Sequence th0smagp5gc0h

-2, -1, 0, -1, 2, 0, 4, -1, 0, 2, 8, 0, 10, 4, 2, -1, 14, 0, 16, 2, 4, 8, 20, 0, 2, 10, 0, 4, 26, 2, 28, -1, 8, 14, 4, 0, 34, 16, 10, 2, 38, 4, 40, 8, 2, 20, 44, 0, 4, 2, more...

integer, non-monotonic, +-

a(n)=gpf(n)-3
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tsgdesnljigwn

-1, 0, 1, 0, 3, 1, 5, 0, 1, 3, 9, 1, 11, 5, 3, 0, 15, 1, 17, 3, 5, 9, 21, 1, 3, 11, 1, 5, 27, 3, 29, 0, 9, 15, 5, 1, 35, 17, 11, 3, 39, 5, 41, 9, 3, 21, 45, 1, 5, 3, more...

integer, non-monotonic, +-

a(n)=gpf(n)-2
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence rkwrrv30w5fq

0, -1, -2, -1, -4, -2, -6, -1, -2, -4, -10, -2, -12, -6, -4, -1, -16, -2, -18, -4, -6, -10, -22, -2, -4, -12, -2, -6, -28, -4, -30, -1, -10, -16, -6, -2, -36, -18, -12, -4, -40, -6, -42, -10, -4, -22, -46, -2, -6, -4, more...

integer, non-monotonic, -

a(n)=1-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence wmntsblwjr0ie

0, 1, 2, 1, 4, 2, 6, 1, 2, 4, 10, 2, 12, 6, 4, 1, 16, 2, 18, 4, 6, 10, 22, 2, 4, 12, 2, 6, 28, 4, 30, 1, 10, 16, 6, 2, 36, 18, 12, 4, 40, 6, 42, 10, 4, 22, 46, 2, 6, 4, more...

integer, non-monotonic, +

a(n)=gpf(n)-1
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence pyauuizohvpik

0.1, 0.2, 0.3, 0.2, 0.5, 0.3, 0.7, 0.2, 0.3, 0.5, 1.1, 0.3, 1.3, 0.7, 0.5, 0.2, 1.7, 0.3, 1.9, 0.5, 0.7, 1.1, 2.3, 0.3, 0.5, more...

decimal, non-monotonic, +

a(n)=gpf(n)/10
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 15gxavcr3ms3b

0.1111111111, 0.2222222222, 0.3333333333, 0.2222222222, 0.5555555556, 0.3333333333, 0.7777777778, 0.2222222222, 0.3333333333, 0.5555555556, 1.2222222222, 0.3333333333, 1.4444444444, 0.7777777778, 0.5555555556, 0.2222222222, 1.8888888889, 0.3333333333, 2.1111111111, 0.5555555556, 0.7777777778, 1.2222222222, 2.5555555556, 0.3333333333, 0.5555555556, more...

decimal, non-monotonic, +

a(n)=gpf(n)/9
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 3srsmknta1nao

0.125, 0.25, 0.375, 0.25, 0.625, 0.375, 0.875, 0.25, 0.375, 0.625, 1.375, 0.375, 1.625, 0.875, 0.625, 0.25, 2.125, 0.375, 2.375, 0.625, 0.875, 1.375, 2.875, 0.375, 0.625, more...

decimal, non-monotonic, +

a(n)=gpf(n)/8
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence gpyuwqbg1yrud

0.1428571429, 0.2857142857, 0.4285714286, 0.2857142857, 0.7142857143, 0.4285714286, 1, 0.2857142857, 0.4285714286, 0.7142857143, 1.5714285714, 0.4285714286, 1.8571428571, 1, 0.7142857143, 0.2857142857, 2.4285714286, 0.4285714286, 2.7142857143, 0.7142857143, 1, 1.5714285714, 3.2857142857, 0.4285714286, 0.7142857143, more...

decimal, non-monotonic, +

a(n)=gpf(n)/7
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence vv2ust3rubmfb

0.1666666667, 0.3333333333, 0.5, 0.3333333333, 0.8333333333, 0.5, 1.1666666667, 0.3333333333, 0.5, 0.8333333333, 1.8333333333, 0.5, 2.1666666667, 1.1666666667, 0.8333333333, 0.3333333333, 2.8333333333, 0.5, 3.1666666667, 0.8333333333, 1.1666666667, 1.8333333333, 3.8333333333, 0.5, 0.8333333333, more...

decimal, non-monotonic, +

a(n)=gpf(n)/6
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence iv0kl1fo0p2rf

0.2, 0.4, 0.6, 0.4, 1, 0.6, 1.4, 0.4, 0.6, 1, 2.2, 0.6, 2.6, 1.4, 1, 0.4, 3.4, 0.6, 3.8, 1, 1.4, 2.2, 4.6, 0.6, 1, more...

decimal, non-monotonic, +

a(n)=gpf(n)/5
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence jhopxrfk2akdc

0.25, 0.5, 0.75, 0.5, 1.25, 0.75, 1.75, 0.5, 0.75, 1.25, 2.75, 0.75, 3.25, 1.75, 1.25, 0.5, 4.25, 0.75, 4.75, 1.25, 1.75, 2.75, 5.75, 0.75, 1.25, more...

decimal, non-monotonic, +

a(n)=gpf(n)/4
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence uuz0mh4bthskf

0.3183098862, 0.6366197724, 0.9549296586, 0.6366197724, 1.5915494309, 0.9549296586, 2.2281692033, 0.6366197724, 0.9549296586, 1.5915494309, 3.501408748, 0.9549296586, 4.1380285204, 2.2281692033, 1.5915494309, 0.6366197724, 5.4112680651, 0.9549296586, 6.0478878375, 1.5915494309, 2.2281692033, 3.501408748, 7.3211273822, 0.9549296586, 1.5915494309, more...

decimal, non-monotonic, +

a(n)=gpf(n)/π
gpf(n)=greatest prime factor of n
π=3.141...
n≥1
4 operations
Prime

Sequence qg0qa1rbxwpgb

0.3333333333, 0.6666666667, 1, 0.6666666667, 1.6666666667, 1, 2.3333333333, 0.6666666667, 1, 1.6666666667, 3.6666666667, 1, 4.3333333333, 2.3333333333, 1.6666666667, 0.6666666667, 5.6666666667, 1, 6.3333333333, 1.6666666667, 2.3333333333, 3.6666666667, 7.6666666667, 1, 1.6666666667, more...

decimal, non-monotonic, +

a(n)=gpf(n)/3
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 02gphr4u4f3t

0.5, 1, 1.5, 1, 2.5, 1.5, 3.5, 1, 1.5, 2.5, 5.5, 1.5, 6.5, 3.5, 2.5, 1, 8.5, 1.5, 9.5, 2.5, 3.5, 5.5, 11.5, 1.5, 2.5, more...

decimal, non-monotonic, +

a(n)=gpf(n)/2
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence mjf0qe4gynssc

1, 0, -1, 0, -3, -1, -5, 0, -1, -3, -9, -1, -11, -5, -3, 0, -15, -1, -17, -3, -5, -9, -21, -1, -3, -11, -1, -5, -27, -3, -29, 0, -9, -15, -5, -1, -35, -17, -11, -3, -39, -5, -41, -9, -3, -21, -45, -1, -5, -3, more...

integer, non-monotonic, +-

a(n)=2-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence cfdvttmrfu4lg

1, 0.5, 0.3333333333, 0.5, 0.2, 0.3333333333, 0.1428571429, 0.5, 0.3333333333, 0.2, 0.0909090909, 0.3333333333, 0.0769230769, 0.1428571429, 0.2, 0.5, 0.0588235294, 0.3333333333, 0.0526315789, 0.2, 0.1428571429, 0.0909090909, 0.0434782609, 0.3333333333, 0.2, more...

decimal, non-monotonic, +

a(n)=1/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence fjnqerdbq1txj

2, 1, 0, 1, -2, 0, -4, 1, 0, -2, -8, 0, -10, -4, -2, 1, -14, 0, -16, -2, -4, -8, -20, 0, -2, -10, 0, -4, -26, -2, -28, 1, -8, -14, -4, 0, -34, -16, -10, -2, -38, -4, -40, -8, -2, -20, -44, 0, -4, -2, more...

integer, non-monotonic, +-

a(n)=3-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence bo210lf0glez

2, 1, 0.6666666667, 1, 0.4, 0.6666666667, 0.2857142857, 1, 0.6666666667, 0.4, 0.1818181818, 0.6666666667, 0.1538461538, 0.2857142857, 0.4, 1, 0.1176470588, 0.6666666667, 0.1052631579, 0.4, 0.2857142857, 0.1818181818, 0.0869565217, 0.6666666667, 0.4, more...

decimal, non-monotonic, +

a(n)=2/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence jinusgmcxapqn

2, 2, 3, 2, 5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, more...

integer, non-monotonic, +, A111089

a(n)=gpf(2*n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tifg2fmozjnig

2, 3, 2, 5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, more...

integer, non-monotonic, +

a(n)=gpf(2+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence 0x2jmf3ijaire

2, 3, 4, 3, 6, 4, 8, 3, 4, 6, 12, 4, 14, 8, 6, 3, 18, 4, 20, 6, 8, 12, 24, 4, 6, 14, 4, 8, 30, 6, 32, 3, 12, 18, 8, 4, 38, 20, 14, 6, 42, 8, 44, 12, 6, 24, 48, 4, 8, 6, more...

integer, non-monotonic, +

a(n)=1+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ibcgn54btr5ao

2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, 11, 7, 19, more...

integer, non-monotonic, +

a(n)=gpf(8+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence mqk5lnci3v1uj

2, 4, 6, 4, 10, 6, 14, 4, 6, 10, 22, 6, 26, 14, 10, 4, 34, 6, 38, 10, 14, 22, 46, 6, 10, 26, 6, 14, 58, 10, 62, 4, 22, 34, 14, 6, 74, 38, 26, 10, 82, 14, 86, 22, 10, 46, 94, 6, 14, 10, more...

integer, non-monotonic, +

a(n)=2*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence nwx5r3wddikd

2, 5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, more...

integer, non-monotonic, +

a(n)=gpf(4+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence bsvegtmqx53ki

2.1415926536, 1.1415926536, 0.1415926536, 1.1415926536, -1.8584073464, 0.1415926536, -3.8584073464, 1.1415926536, 0.1415926536, -1.8584073464, -7.8584073464, 0.1415926536, -9.8584073464, -3.8584073464, -1.8584073464, 1.1415926536, -13.8584073464, 0.1415926536, -15.8584073464, -1.8584073464, -3.8584073464, -7.8584073464, -19.8584073464, 0.1415926536, -1.8584073464, more...

decimal, non-monotonic, +-

a(n)=π-gpf(n)
π=3.141...
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ftq1hslmkz0qe

3, 1.5, 1, 1.5, 0.6, 1, 0.4285714286, 1.5, 1, 0.6, 0.2727272727, 1, 0.2307692308, 0.4285714286, 0.6, 1.5, 0.1764705882, 1, 0.1578947368, 0.6, 0.4285714286, 0.2727272727, 0.1304347826, 1, 0.6, more...

decimal, non-monotonic, +

a(n)=3/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ibevojlhontsg

3, 2, 1, 2, -1, 1, -3, 2, 1, -1, -7, 1, -9, -3, -1, 2, -13, 1, -15, -1, -3, -7, -19, 1, -1, -9, 1, -3, -25, -1, -27, 2, -7, -13, -3, 1, -33, -15, -9, -1, -37, -3, -39, -7, -1, -19, -43, 1, -3, -1, more...

integer, non-monotonic, +-

a(n)=4-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence hivqos5dmo1xd

3, 2, 5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, more...

integer, non-monotonic, +

a(n)=gpf(3+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence ctzayso4mvwkl

3, 3, 3, 3, 5, 3, 7, 3, 3, 5, 11, 3, 13, 7, 5, 3, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 3, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, more...

integer, non-monotonic, +

a(n)=gpf(3*n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tw1tjhbpr43ii

3, 4, 5, 4, 7, 5, 9, 4, 5, 7, 13, 5, 15, 9, 7, 4, 19, 5, 21, 7, 9, 13, 25, 5, 7, 15, 5, 9, 31, 7, 33, 4, 13, 19, 9, 5, 39, 21, 15, 7, 43, 9, 45, 13, 7, 25, 49, 5, 9, 7, more...

integer, non-monotonic, +

a(n)=2+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 51qyxj20tvffb

3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, 11, 7, 19, 29, more...

integer, non-monotonic, +

a(n)=gpf(9+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence 2nika0dwyumvg

3, 6, 9, 6, 15, 9, 21, 6, 9, 15, 33, 9, 39, 21, 15, 6, 51, 9, 57, 15, 21, 33, 69, 9, 15, 39, 9, 21, 87, 15, 93, 6, 33, 51, 21, 9, 111, 57, 39, 15, 123, 21, 129, 33, 15, 69, 141, 9, 21, 15, more...

integer, non-monotonic, +

a(n)=3*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence p031kfmjywsdm

3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, 11, more...

integer, non-monotonic, +

a(n)=gpf(6+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence 1xtczyu3xb0p

3.1415926536, 1.5707963268, 1.0471975512, 1.5707963268, 0.6283185307, 1.0471975512, 0.4487989505, 1.5707963268, 1.0471975512, 0.6283185307, 0.2855993321, 1.0471975512, 0.2416609734, 0.4487989505, 0.6283185307, 1.5707963268, 0.1847995679, 1.0471975512, 0.1653469818, 0.6283185307, 0.4487989505, 0.2855993321, 0.1365909849, 1.0471975512, 0.6283185307, more...

decimal, non-monotonic, +

a(n)=π/gpf(n)
π=3.141...
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ztrevqje13kkl

3.1415926536, 6.2831853072, 9.4247779608, 6.2831853072, 15.7079632679, 9.4247779608, 21.9911485751, 6.2831853072, 9.4247779608, 15.7079632679, 34.5575191895, 9.4247779608, 40.8407044967, 21.9911485751, 15.7079632679, 6.2831853072, 53.407075111, 9.4247779608, 59.6902604182, 15.7079632679, 21.9911485751, 34.5575191895, 72.2566310326, 9.4247779608, 15.7079632679, more...

decimal, non-monotonic, +

a(n)=π*gpf(n)
π=3.141...
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence rq4i3qumlfxbo

4, 2, 1.3333333333, 2, 0.8, 1.3333333333, 0.5714285714, 2, 1.3333333333, 0.8, 0.3636363636, 1.3333333333, 0.3076923077, 0.5714285714, 0.8, 2, 0.2352941176, 1.3333333333, 0.2105263158, 0.8, 0.5714285714, 0.3636363636, 0.1739130435, 1.3333333333, 0.8, more...

decimal, non-monotonic, +

a(n)=4/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ef20sj3qhl5eb

4, 3, 2, 3, 0, 2, -2, 3, 2, 0, -6, 2, -8, -2, 0, 3, -12, 2, -14, 0, -2, -6, -18, 2, 0, -8, 2, -2, -24, 0, -26, 3, -6, -12, -2, 2, -32, -14, -8, 0, -36, -2, -38, -6, 0, -18, -42, 2, -2, 0, more...

integer, non-monotonic, +-

a(n)=5-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence fuijx3kprba5h

4, 5, 6, 5, 8, 6, 10, 5, 6, 8, 14, 6, 16, 10, 8, 5, 20, 6, 22, 8, 10, 14, 26, 6, 8, 16, 6, 10, 32, 8, 34, 5, 14, 20, 10, 6, 40, 22, 16, 8, 44, 10, 46, 14, 8, 26, 50, 6, 10, 8, more...

integer, non-monotonic, +

a(n)=3+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence rtd0l0ivj2l3i

4, 8, 12, 8, 20, 12, 28, 8, 12, 20, 44, 12, 52, 28, 20, 8, 68, 12, 76, 20, 28, 44, 92, 12, 20, 52, 12, 28, 116, 20, 124, 8, 44, 68, 28, 12, 148, 76, 52, 20, 164, 28, 172, 44, 20, 92, 188, 12, 28, 20, more...

integer, non-monotonic, +

a(n)=4*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence k2shpzegml4ab

4.1415926536, 5.1415926536, 6.1415926536, 5.1415926536, 8.1415926536, 6.1415926536, 10.1415926536, 5.1415926536, 6.1415926536, 8.1415926536, 14.1415926536, 6.1415926536, 16.1415926536, 10.1415926536, 8.1415926536, 5.1415926536, 20.1415926536, 6.1415926536, 22.1415926536, 8.1415926536, 10.1415926536, 14.1415926536, 26.1415926536, 6.1415926536, 8.1415926536, more...

decimal, non-monotonic, +

a(n)=π+gpf(n)
π=3.141...
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence r2yur2luaqznn

5, 2.5, 1.6666666667, 2.5, 1, 1.6666666667, 0.7142857143, 2.5, 1.6666666667, 1, 0.4545454545, 1.6666666667, 0.3846153846, 0.7142857143, 1, 2.5, 0.2941176471, 1.6666666667, 0.2631578947, 1, 0.7142857143, 0.4545454545, 0.2173913043, 1.6666666667, 1, more...

decimal, non-monotonic, +

a(n)=5/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence kzm1e4upuar4k

5, 3, 7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, more...

integer, non-monotonic, +

a(n)=gpf(5+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence zbtxkinv0upnm

5, 4, 3, 4, 1, 3, -1, 4, 3, 1, -5, 3, -7, -1, 1, 4, -11, 3, -13, 1, -1, -5, -17, 3, 1, -7, 3, -1, -23, 1, -25, 4, -5, -11, -1, 3, -31, -13, -7, 1, -35, -1, -37, -5, 1, -17, -41, 3, -1, 1, more...

integer, non-monotonic, +-

a(n)=6-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence lpgmzh33sh3nn

5, 5, 5, 5, 5, 5, 7, 5, 5, 5, 11, 5, 13, 7, 5, 5, 17, 5, 19, 5, 7, 11, 23, 5, 5, 13, 5, 7, 29, 5, 31, 5, 11, 17, 7, 5, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 5, 7, 5, more...

integer, non-monotonic, +

a(n)=gpf(5*n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tdk0tlk5f1sof

5, 6, 7, 6, 9, 7, 11, 6, 7, 9, 15, 7, 17, 11, 9, 6, 21, 7, 23, 9, 11, 15, 27, 7, 9, 17, 7, 11, 33, 9, 35, 6, 15, 21, 11, 7, 41, 23, 17, 9, 45, 11, 47, 15, 9, 27, 51, 7, 11, 9, more...

integer, non-monotonic, +

a(n)=4+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence b0zd1kcnfyatd

5, 10, 15, 10, 25, 15, 35, 10, 15, 25, 55, 15, 65, 35, 25, 10, 85, 15, 95, 25, 35, 55, 115, 15, 25, 65, 15, 35, 145, 25, 155, 10, 55, 85, 35, 15, 185, 95, 65, 25, 205, 35, 215, 55, 25, 115, 235, 15, 35, 25, more...

integer, non-monotonic, +

a(n)=5*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence jrmnzymwye5op

5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, 11, 7, 19, 29, 59, more...

integer, non-monotonic, +

a(n)=gpf(10+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence 4ikhiuovpwssl

6, 3, 2, 3, 1.2, 2, 0.8571428571, 3, 2, 1.2, 0.5454545455, 2, 0.4615384615, 0.8571428571, 1.2, 3, 0.3529411765, 2, 0.3157894737, 1.2, 0.8571428571, 0.5454545455, 0.2608695652, 2, 1.2, more...

decimal, non-monotonic, +

a(n)=6/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence fxmjtwek2pp1n

6, 5, 4, 5, 2, 4, 0, 5, 4, 2, -4, 4, -6, 0, 2, 5, -10, 4, -12, 2, 0, -4, -16, 4, 2, -6, 4, 0, -22, 2, -24, 5, -4, -10, 0, 4, -30, -12, -6, 2, -34, 0, -36, -4, 2, -16, -40, 4, 0, 2, more...

integer, non-monotonic, +-

a(n)=7-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence uip42ufaeyzyp

6, 7, 8, 7, 10, 8, 12, 7, 8, 10, 16, 8, 18, 12, 10, 7, 22, 8, 24, 10, 12, 16, 28, 8, 10, 18, 8, 12, 34, 10, 36, 7, 16, 22, 12, 8, 42, 24, 18, 10, 46, 12, 48, 16, 10, 28, 52, 8, 12, 10, more...

integer, non-monotonic, +

a(n)=5+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 1amhhaw3zj3wd

6, 12, 18, 12, 30, 18, 42, 12, 18, 30, 66, 18, 78, 42, 30, 12, 102, 18, 114, 30, 42, 66, 138, 18, 30, 78, 18, 42, 174, 30, 186, 12, 66, 102, 42, 18, 222, 114, 78, 30, 246, 42, 258, 66, 30, 138, 282, 18, 42, 30, more...

integer, non-monotonic, +

a(n)=6*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 005thulerm4gn

7, 2, 3, 5, 11, 3, 13, 7, 5, 2, 17, 3, 19, 5, 7, 11, 23, 3, 5, 13, 3, 7, 29, 5, 31, 2, 11, 17, 7, 3, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 7, 5, 17, 13, 53, 3, 11, 7, more...

integer, non-monotonic, +

a(n)=gpf(7+n)
gpf(n)=greatest prime factor of n
n≥0
4 operations
Prime

Sequence unhgn3e4vp54o

7, 3.5, 2.3333333333, 3.5, 1.4, 2.3333333333, 1, 3.5, 2.3333333333, 1.4, 0.6363636364, 2.3333333333, 0.5384615385, 1, 1.4, 3.5, 0.4117647059, 2.3333333333, 0.3684210526, 1.4, 1, 0.6363636364, 0.3043478261, 2.3333333333, 1.4, more...

decimal, non-monotonic, +

a(n)=7/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 4qvjamy1tuysi

7, 6, 5, 6, 3, 5, 1, 6, 5, 3, -3, 5, -5, 1, 3, 6, -9, 5, -11, 3, 1, -3, -15, 5, 3, -5, 5, 1, -21, 3, -23, 6, -3, -9, 1, 5, -29, -11, -5, 3, -33, 1, -35, -3, 3, -15, -39, 5, 1, 3, more...

integer, non-monotonic, +-

a(n)=8-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence u1alcc55ogj3o

7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 11, 7, 13, 7, 7, 7, 17, 7, 19, 7, 7, 11, 23, 7, 7, 13, 7, 7, 29, 7, 31, 7, 11, 17, 7, 7, 37, 19, 13, 7, 41, 7, 43, 11, 7, 23, 47, 7, 7, 7, more...

integer, non-monotonic, +

a(n)=gpf(7*n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence y4ddnkhalozyl

7, 8, 9, 8, 11, 9, 13, 8, 9, 11, 17, 9, 19, 13, 11, 8, 23, 9, 25, 11, 13, 17, 29, 9, 11, 19, 9, 13, 35, 11, 37, 8, 17, 23, 13, 9, 43, 25, 19, 11, 47, 13, 49, 17, 11, 29, 53, 9, 13, 11, more...

integer, non-monotonic, +

a(n)=6+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence kdanyczottnvd

7, 14, 21, 14, 35, 21, 49, 14, 21, 35, 77, 21, 91, 49, 35, 14, 119, 21, 133, 35, 49, 77, 161, 21, 35, 91, 21, 49, 203, 35, 217, 14, 77, 119, 49, 21, 259, 133, 91, 35, 287, 49, 301, 77, 35, 161, 329, 21, 49, 35, more...

integer, non-monotonic, +

a(n)=7*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence em2gsz4uwq5nj

8, 4, 2.6666666667, 4, 1.6, 2.6666666667, 1.1428571429, 4, 2.6666666667, 1.6, 0.7272727273, 2.6666666667, 0.6153846154, 1.1428571429, 1.6, 4, 0.4705882353, 2.6666666667, 0.4210526316, 1.6, 1.1428571429, 0.7272727273, 0.347826087, 2.6666666667, 1.6, more...

decimal, non-monotonic, +

a(n)=8/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence rlvcprldqyffh

8, 7, 6, 7, 4, 6, 2, 7, 6, 4, -2, 6, -4, 2, 4, 7, -8, 6, -10, 4, 2, -2, -14, 6, 4, -4, 6, 2, -20, 4, -22, 7, -2, -8, 2, 6, -28, -10, -4, 4, -32, 2, -34, -2, 4, -14, -38, 6, 2, 4, more...

integer, non-monotonic, +-

a(n)=9-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ytne4g3p24k5j

8, 9, 10, 9, 12, 10, 14, 9, 10, 12, 18, 10, 20, 14, 12, 9, 24, 10, 26, 12, 14, 18, 30, 10, 12, 20, 10, 14, 36, 12, 38, 9, 18, 24, 14, 10, 44, 26, 20, 12, 48, 14, 50, 18, 12, 30, 54, 10, 14, 12, more...

integer, non-monotonic, +

a(n)=7+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 5rl1egqrfrsec

8, 16, 24, 16, 40, 24, 56, 16, 24, 40, 88, 24, 104, 56, 40, 16, 136, 24, 152, 40, 56, 88, 184, 24, 40, 104, 24, 56, 232, 40, 248, 16, 88, 136, 56, 24, 296, 152, 104, 40, 328, 56, 344, 88, 40, 184, 376, 24, 56, 40, more...

integer, non-monotonic, +

a(n)=8*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ienirb5x1n0bb

9, 4.5, 3, 4.5, 1.8, 3, 1.2857142857, 4.5, 3, 1.8, 0.8181818182, 3, 0.6923076923, 1.2857142857, 1.8, 4.5, 0.5294117647, 3, 0.4736842105, 1.8, 1.2857142857, 0.8181818182, 0.3913043478, 3, 1.8, more...

decimal, non-monotonic, +

a(n)=9/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ahzavepoxdj4k

9, 8, 7, 8, 5, 7, 3, 8, 7, 5, -1, 7, -3, 3, 5, 8, -7, 7, -9, 5, 3, -1, -13, 7, 5, -3, 7, 3, -19, 5, -21, 8, -1, -7, 3, 7, -27, -9, -3, 5, -31, 3, -33, -1, 5, -13, -37, 7, 3, 5, more...

integer, non-monotonic, +-

a(n)=10-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 13phcaovnumnd

9, 10, 11, 10, 13, 11, 15, 10, 11, 13, 19, 11, 21, 15, 13, 10, 25, 11, 27, 13, 15, 19, 31, 11, 13, 21, 11, 15, 37, 13, 39, 10, 19, 25, 15, 11, 45, 27, 21, 13, 49, 15, 51, 19, 13, 31, 55, 11, 15, 13, more...

integer, non-monotonic, +

a(n)=8+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 1drmchvnda4vl

9, 18, 27, 18, 45, 27, 63, 18, 27, 45, 99, 27, 117, 63, 45, 18, 153, 27, 171, 45, 63, 99, 207, 27, 45, 117, 27, 63, 261, 45, 279, 18, 99, 153, 63, 27, 333, 171, 117, 45, 369, 63, 387, 99, 45, 207, 423, 27, 63, 45, more...

integer, non-monotonic, +

a(n)=9*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence p24l1q3za0jic

10, 5, 3.3333333333, 5, 2, 3.3333333333, 1.4285714286, 5, 3.3333333333, 2, 0.9090909091, 3.3333333333, 0.7692307692, 1.4285714286, 2, 5, 0.5882352941, 3.3333333333, 0.5263157895, 2, 1.4285714286, 0.9090909091, 0.4347826087, 3.3333333333, 2, more...

decimal, non-monotonic, +

a(n)=10/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence olftl4aeymhwj

10, 11, 12, 11, 14, 12, 16, 11, 12, 14, 20, 12, 22, 16, 14, 11, 26, 12, 28, 14, 16, 20, 32, 12, 14, 22, 12, 16, 38, 14, 40, 11, 20, 26, 16, 12, 46, 28, 22, 14, 50, 16, 52, 20, 14, 32, 56, 12, 16, 14, more...

integer, non-monotonic, +

a(n)=9+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence nktmfpzd5mzof

10, 20, 30, 20, 50, 30, 70, 20, 30, 50, 110, 30, 130, 70, 50, 20, 170, 30, 190, 50, 70, 110, 230, 30, 50, 130, 30, 70, 290, 50, 310, 20, 110, 170, 70, 30, 370, 190, 130, 50, 410, 70, 430, 110, 50, 230, 470, 30, 70, 50, more...

integer, non-monotonic, +

a(n)=10*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence gy24eit2nmmqg

11, 12, 13, 12, 15, 13, 17, 12, 13, 15, 21, 13, 23, 17, 15, 12, 27, 13, 29, 15, 17, 21, 33, 13, 15, 23, 13, 17, 39, 15, 41, 12, 21, 27, 17, 13, 47, 29, 23, 15, 51, 17, 53, 21, 15, 33, 57, 13, 17, 15, more...

integer, non-monotonic, +

a(n)=10+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence goqq3izdwyrpm

0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, more...

integer, non-monotonic, +

a(n)=cf(gpf(n))
gpf(n)=greatest prime factor of n
cf(a)=characteristic function of a (in range)
n≥1
3 operations
Prime

Sequence eup4y2atztiik

0, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, more...

integer, strictly-monotonic, +

a(n)=comp(gpf(n))
gpf(n)=greatest prime factor of n
comp(a)=complement function of a (in range)
n≥1
3 operations
Prime

Sequence 4qajrttp0lhye

1, 1, -1, 3, -2, 4, -5, 1, 2, 6, -8, 10, -6, -2, -3, 15, -14, 16, -14, 2, 4, 12, -20, 2, 8, -10, 4, 22, -24, 26, -29, 9, 6, -10, -4, 34, -18, -6, -8, 36, -34, 36, -32, -6, 18, 24, -44, 4, -2, 12, more...

integer, non-monotonic, +-

a(n)=Δ(gpf(n))
gpf(n)=greatest prime factor of n
Δ(a)=differences of a
n≥1
3 operations
Prime

Sequence gk3ld4tdgzx1b

1, 2, 6, 12, 60, 180, 1260, 2520, 7560, 37800, 415800, 1247400, 16216200, 113513400, 567567000, 1135134000, 19297278000, 57891834000, more...

integer, strictly-monotonic, +, A104350

a(n)=∏(gpf(n))
gpf(n)=greatest prime factor of n
∏(a)=partial products of a
n≥1
3 operations
Prime

Sequence h1oskbrcja42

1, 3, 3, 5, 5, 7, 7, 3, 5, 11, 11, 13, 13, 7, 5, 17, 17, 19, 19, 7, 11, 23, 23, 5, 13, 13, 7, 29, 29, 31, 31, 11, 17, 17, 7, 37, 37, 19, 13, 41, 41, 43, 43, 11, 23, 47, 47, 7, 7, 17, more...

integer, non-monotonic, +

a(n)=gpf(∑(n))
∑(a)=partial sums of a
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence rrdjt2sx2fhqf

1, 3, 6, 8, 13, 16, 23, 25, 28, 33, 44, 47, 60, 67, 72, 74, 91, 94, 113, 118, 125, 136, 159, 162, 167, 180, 183, 190, 219, 224, 255, 257, 268, 285, 292, 295, 332, 351, 364, 369, 410, 417, 460, 471, 476, 499, 546, 549, 556, 561, more...

integer, strictly-monotonic, +, A046670

a(n)=∑(gpf(n))
gpf(n)=greatest prime factor of n
∑(a)=partial sums of a
n≥1
3 operations
Prime

Sequence xo1zj4opvp5wb

0, 0, 0, -2, 0, -3, 0, -6, -6, -5, 0, -9, 0, -7, -10, -14, 0, -15, 0, -15, -14, -11, 0, -21, -20, -13, -24, -21, 0, -25, 0, -30, -22, -17, -28, -33, 0, -19, -26, -35, 0, -35, 0, -33, -40, -23, 0, -45, -42, -45, more...

integer, non-monotonic, -

a(n)=gpf(n)-n
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence zs11nzp4mu50j

0, 0, 0, 2, 0, 3, 0, 6, 6, 5, 0, 9, 0, 7, 10, 14, 0, 15, 0, 15, 14, 11, 0, 21, 20, 13, 24, 21, 0, 25, 0, 30, 22, 17, 28, 33, 0, 19, 26, 35, 0, 35, 0, 33, 40, 23, 0, 45, 42, 45, more...

integer, non-monotonic, +

a(n)=n-gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence n5n2lbjwup51d

1, 1, 1, 0.5, 1, 0.5, 1, 0.25, 0.3333333333, 0.5, 1, 0.25, 1, 0.5, 0.3333333333, 0.125, 1, 0.1666666667, 1, 0.25, 0.3333333333, 0.5, 1, 0.125, 0.2, more...

decimal, non-monotonic, +

a(n)=gpf(n)/n
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence e5gqzjzjlvueb

1, 1, 1, 2, 1, 2, 1, 4, 3, 2, 1, 4, 1, 2, 3, 8, 1, 6, 1, 4, 3, 2, 1, 8, 5, 2, 9, 4, 1, 6, 1, 16, 3, 2, 5, 12, 1, 2, 3, 8, 1, 6, 1, 4, 9, 2, 1, 16, 7, 10, more...

integer, non-monotonic, +, A052126

a(n)=n/gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence ffnuwdp51dgsd

1, 4, 9, 8, 25, 18, 49, 16, 27, 50, 121, 36, 169, 98, 75, 32, 289, 54, 361, 100, 147, 242, 529, 72, 125, 338, 81, 196, 841, 150, 961, 64, 363, 578, 245, 108, 1369, 722, 507, 200, 1681, 294, 1849, 484, 225, 1058, 2209, 144, 343, 250, more...

integer, non-monotonic, +, A253560

a(n)=n*gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence lm5mpgtgqufxn

2, 4, 6, 6, 10, 9, 14, 10, 12, 15, 22, 15, 26, 21, 20, 18, 34, 21, 38, 25, 28, 33, 46, 27, 30, 39, 30, 35, 58, 35, 62, 34, 44, 51, 42, 39, 74, 57, 52, 45, 82, 49, 86, 55, 50, 69, 94, 51, 56, 55, more...

integer, non-monotonic, +, A070229

a(n)=n+gpf(n)
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence tcbodt23jwvwk

-1, -4, -9, -4, -25, -9, -49, -4, -9, -25, -121, -9, -169, -49, -25, -4, -289, -9, -361, -25, -49, -121, -529, -9, -25, -169, -9, -49, -841, -25, -961, -4, -121, -289, -49, -9, -1369, -361, -169, -25, -1681, -49, -1849, -121, -25, -529, -2209, -9, -49, -25, more...

integer, non-monotonic, -

a(n)=-gpf(n)²
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

Sequence 4bft5zrfi5kbe

0, 0.6931471806, 1.0986122887, 0.6931471806, 1.6094379124, 1.0986122887, 1.9459101491, 0.6931471806, 1.0986122887, 1.6094379124, 2.3978952728, 1.0986122887, 2.5649493575, 1.9459101491, 1.6094379124, 0.6931471806, 2.8332133441, 1.0986122887, 2.9444389792, 1.6094379124, 1.9459101491, 2.3978952728, 3.1354942159, 1.0986122887, 1.6094379124, more...

decimal, non-monotonic, +

a(n)=log(gpf(n))
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence ww5meeycegddb

1, 1.4142135624, 1.7320508076, 1.4142135624, 2.2360679775, 1.7320508076, 2.6457513111, 1.4142135624, 1.7320508076, 2.2360679775, 3.3166247904, 1.7320508076, 3.6055512755, 2.6457513111, 2.2360679775, 1.4142135624, 4.1231056256, 1.7320508076, 4.3588989435, 2.2360679775, 2.6457513111, 3.3166247904, 4.7958315233, 1.7320508076, 2.2360679775, more...

decimal, non-monotonic, +

a(n)=sqrt(gpf(n))
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence pfdqez1kpczeh

2.7182818285, 7.3890560989, 20.0855369232, 7.3890560989, 148.4131591026, 20.0855369232, 1096.6331584285, 7.3890560989, 20.0855369232, 148.4131591026, 59874.1417151978, 20.0855369232, 442413.3920089205, 1096.6331584285, 148.4131591026, 7.3890560989, 24154952.7535753, 20.0855369232, 178482300.96318725, 148.4131591026, 1096.6331584285, 59874.1417151978, 9744803446.248903, 20.0855369232, 148.4131591026, more...

decimal, non-monotonic, +

a(n)=exp(gpf(n))
gpf(n)=greatest prime factor of n
n≥1
3 operations
Prime

Sequence aqdh5oycd5o3e

-1, -1, -2, -1, -3, -2, -3, -1, -2, -3, -5, -2, -5, -3, -3, -1, -5, -2, -7, -3, -3, -5, -7, -2, -3, -5, -2, -3, -7, -3, -5, -1, -5, -5, -3, -2, -11, -7, -5, -3, -11, -3, -13, -5, -3, -7, -9, -2, -3, -3, more...

integer, non-monotonic, -

a(n)=-stern(gpf(n))
gpf(n)=greatest prime factor of n
stern(n)=Stern-Brocot sequence
n≥1
4 operations
Prime

Sequence ufe5aaqaoqfsm

-1, -1, -2, -1, -3, -2, -3, -1, -2, -3, -5, -2, -5, -3, -2, -1, -5, -2, -7, -3, -2, -5, -7, -2, -7, -5, -2, -3, -7, -2, -5, -1, -3, -5, -3, -2, -11, -7, -5, -3, -11, -2, -13, -5, -3, -7, -3, -2, -3, -7, more...

integer, non-monotonic, -

a(n)=-gpf(stern(n))
stern(n)=Stern-Brocot sequence
gpf(n)=greatest prime factor of n
n≥1
4 operations
Prime

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