A165841 Totally multiplicative sequence with a(p) = 20.

1, 20, 20, 400, 20, 400, 20, 8000, 400, 400, 20, 8000, 20, 400, 400, 160000, 20, 8000, 20, 8000, 400, 400, 20, 160000, 400, 400, 8000, 8000, 20, 8000, 20, 3200000, 400, 400, 400, 160000, 20, 400, 400, 160000, 20, 8000, 20, 8000, 8000, 400, 20, 3200000, 400

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

20^PrimeOmega[Range[100]] (* G. C. Greubel, Apr 09 2016 *)

Formula

a(n) = A009964(A001222(n)) = 20^bigomega(n) = 20^A001222(n).