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

1,2

Links

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

Formula

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

Mathematica

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

Crossrefs

Sequence in context: A354569 A022354 A302363 * A222958 A374170 A355312

Adjacent sequences: A165838 A165839 A165840 * A165842 A165843 A165844

Keyword

nonn,mult

Author

Jaroslav Krizek, Sep 28 2009

Status

approved