A337475 a(n) = A336835(A025487(n)).

0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 2, 0, 1, 2, 1, 1, 1, 2, 0, 1, 2, 1, 2, 1, 2, 0, 1, 2, 1, 2, 1, 2, 2, 0, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 0, 2, 1, 2, 2, 1, 2, 1, 2, 1, 2, 2, 0, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 1, 0, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 0, 2, 1, 2, 2, 1, 2, 2

Offset

1,17

Links

Antti Karttunen, Table of n, a(n) for n = 1..67099

Index entries for sequences computed from indices in prime factorization

Index entries for sequences related to primorial numbers

Index entries for sequences related to sigma(n)

Formula

a(n) = A336835(A025487(n)).

a(n) = A337474(A181815(n)).

Crossrefs

Cf. A025487, A181815, A336835, A337474, A337477.

Sequence in context: A033793 A033785 A033781 * A141803 A249147 A260648

Adjacent sequences: A337472 A337473 A337474 * A337476 A337477 A337478

Keyword

nonn

Author

Antti Karttunen, Aug 28 2020

Status

approved