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A165842 Totally multiplicative sequence with a(p) = 21. 1
1, 21, 21, 441, 21, 441, 21, 9261, 441, 441, 21, 9261, 21, 441, 441, 194481, 21, 9261, 21, 9261, 441, 441, 21, 194481, 441, 441, 9261, 9261, 21, 9261, 21, 4084101, 441, 441, 441, 194481, 21, 441, 441, 194481, 21, 9261, 21, 9261, 9261, 441, 21, 4084101, 441 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

FORMULA

a(n) = A009965(A001222(n)) = 21^bigomega(n) = 21^A001222(n).

MATHEMATICA

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

CROSSREFS

Sequence in context: A219913 A219401 A219449 * A183738 A004510 A199934

Adjacent sequences:  A165839 A165840 A165841 * A165843 A165844 A165845

KEYWORD

nonn,mult

AUTHOR

Jaroslav Krizek, Sep 28 2009

STATUS

approved

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Last modified September 20 04:16 EDT 2021. Contains 347577 sequences. (Running on oeis4.)