A265370 a(0) = 0; for n >= 1, a(n) = A070939(A078510(n)).

0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14

Offset

0,9

Comments

Number of significant bits in the binary representation of n-th Spironacci number, A078510(n).

Links

Antti Karttunen, Table of n, a(n) for n = 0..8192

Formula

a(0) = 0; for n >= 1, a(n) = A070939(A078510(n)).

Prog

(define (A265370 n) (if (zero? n) n (A070939 (A078510 n))))

Crossrefs

Cf. A070939, A078510.

Cf. also A020909.

Sequence in context: A029837 A070939 A113473 * A356895 A238407 A196050

Adjacent sequences: A265367 A265368 A265369 * A265371 A265372 A265373

Keyword

nonn

Author

Antti Karttunen, Dec 16 2015

Status

approved