A252370 a(n) = A243055(A251726(n)).

0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 2, 0, 0, 2, 0, 3, 0, 0, 1, 0, 1, 1, 0, 0, 0, 4, 0, 2, 5, 1, 0, 0, 0, 2, 0, 1, 0, 0, 6, 3, 0, 0, 0, 0, 0, 4, 1, 0, 0, 1, 1, 2, 0, 0, 0, 5, 1, 0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 1, 0, 0, 0, 6, 3, 0, 1, 7, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 2, 0, 4, 0, 0, 8, 0, 0, 0

Offset

1,17

Links

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

Formula

a(n) = A243055(A251726(n)).

a(n) = A243055(A066048(A251726(n))). [Result depends only on the smallest and the largest prime factor of A251726(n).]

Prog

(Scheme) (define (A252370 n) (A243055 (A251726 n)))

Crossrefs

Cf. A252371, A243055, A251726, A066048.

Sequence in context: A353353 A195470 A324902 * A045827 A070103 A113048

Adjacent sequences: A252367 A252368 A252369 * A252371 A252372 A252373

Keyword

nonn

Author

Antti Karttunen, Dec 17 2014

Status

approved