A289617 - OEIS

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A289617

a(n) = A005187(A001222(n)).

0, 1, 1, 3, 1, 3, 1, 4, 3, 3, 1, 4, 1, 3, 3, 7, 1, 4, 1, 4, 3, 3, 1, 7, 3, 3, 4, 4, 1, 4, 1, 8, 3, 3, 3, 7, 1, 3, 3, 7, 1, 4, 1, 4, 4, 3, 1, 8, 3, 4, 3, 4, 1, 7, 3, 7, 3, 3, 1, 7, 1, 3, 4, 10, 3, 4, 1, 4, 3, 4, 1, 8, 1, 3, 4, 4, 3, 4, 1, 8, 7, 3, 1, 7, 3, 3, 3, 7, 1, 7, 3, 4, 3, 3, 3, 10, 1, 4, 4, 7, 1, 4, 1, 7, 4, 3, 1, 8, 1, 4, 3, 8, 1, 4, 3, 4, 4, 3, 3, 8

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OFFSET

1,4

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

Index entries for sequences computed from exponents in factorization of n

FORMULA

a(n) = A005187(A001222(n)).

PROG

(Scheme) (define (A289617 n) (A005187 (A001222 n)))

(PARI) a(n) = my(bn=bigomega(n)); 2*bn-hammingweight(bn); \\ Michel Marcus, Jul 10 2017

CROSSREFS