A318451 The 2-adic valuation of A318450.

0, 0, 1, 0, 1, 1, 1, 0, 3, 1, 1, 1, 1, 1, 2, 0, 1, 3, 1, 1, 2, 1, 1, 1, 3, 1, 4, 1, 1, 2, 1, 0, 2, 1, 2, 3, 1, 1, 2, 1, 1, 2, 1, 1, 4, 1, 1, 1, 3, 3, 2, 1, 1, 4, 2, 1, 2, 1, 1, 2, 1, 1, 4, 0, 2, 2, 1, 1, 2, 2, 1, 3, 1, 1, 4, 1, 2, 2, 1, 1, 7, 1, 1, 2, 2, 1, 2, 1, 1, 4, 2, 1, 2, 1, 2, 1, 1, 3, 4, 3, 1, 2, 1, 1, 3

Offset

1,9

Links

Antti Karttunen, Table of n, a(n) for n = 1..65537

Formula

a(n) = A007814(A318450(n)).

Prog

(PARI) A318451(n) = valuation(A318450(n), 2); \\ Needs also code from A318450.

Crossrefs

Cf. A007814, A318450.

Cf. also A046645, A317946, A318315, A318455.

Sequence in context: A146531 A285865 A360098 * A030381 A318663 A359196

Adjacent sequences: A318448 A318449 A318450 * A318452 A318453 A318454

Keyword

nonn

Author

Antti Karttunen and Andrew Howroyd, Aug 29 2018

Status

approved