A165861 Totally multiplicative sequence with a(p) = 40.

1, 40, 40, 1600, 40, 1600, 40, 64000, 1600, 1600, 40, 64000, 40, 1600, 1600, 2560000, 40, 64000, 40, 64000, 1600, 1600, 40, 2560000, 1600, 1600, 64000, 64000, 40, 64000, 40, 102400000, 1600, 1600, 1600, 2560000, 40, 1600, 1600, 2560000, 40, 64000, 40

Offset: 1

Author

Jaroslav Krizek, Sep 28 2009

Keywords

• nonn
• mult

Links

• G. C. Greubel, Table of n, a(n) for n = 1..10000

Programs

Mathematica

40^PrimeOmega[Range[100]] (* G. C. Greubel, Apr 15 2016 *)

PARI

a(n) = 40^bigomega(n); \\ Altug Alkan, Apr 15 2016

Formula

a(n) = A009984(A001222(n)) = 40^bigomega(n) = 40^A001222(n).