A318472 Multiplicative with a(p^e) = 2^A000045(e).

1, 2, 2, 2, 2, 4, 2, 4, 2, 4, 2, 4, 2, 4, 4, 8, 2, 4, 2, 4, 4, 4, 2, 8, 2, 4, 4, 4, 2, 8, 2, 32, 4, 4, 4, 4, 2, 4, 4, 8, 2, 8, 2, 4, 4, 4, 2, 16, 2, 4, 4, 4, 2, 8, 4, 8, 4, 4, 2, 8, 2, 4, 4, 256, 4, 8, 2, 4, 4, 8, 2, 8, 2, 4, 4, 4, 4, 8, 2, 16, 8, 4, 2, 8, 4, 4, 4, 8, 2, 8, 4, 4, 4, 4, 4, 64, 2, 4, 4, 4, 2, 8, 2, 8, 8

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..16384

Index entries for sequences computed from exponents in factorization of n

Formula

a(n) = 2^A318471(n).

Prog

(PARI) A318472(n) = factorback(apply(e -> 2^fibonacci(e), factor(n)[, 2]));

Crossrefs

Cf. A000045, A318471, A318474.

Sequence in context: A318307 A331109 A286324 * A186643 A342087 A286575

Adjacent sequences: A318469 A318470 A318471 * A318473 A318474 A318475

Keyword

nonn,mult

Author

Antti Karttunen, Aug 29 2018

Status

approved