A265336 Number of nonleading 0-bits in bijective base-3 reversal of n: a(n) = A080791(A263273(n)).

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

Offset

0,5

Links

Antti Karttunen, Table of n, a(n) for n = 0..16384

Formula

a(n) = A080791(A263273(n)).

a(0) = 0, a(2n) = 1 + a(A265339(n)), a(2n+1) = a(A265339(n)).

a(n) = A265340(n) - A265337(n).

Prog

(Scheme, two variants)
(definec (A265336 n) (if (zero? n) 0 (+ (A265336 (A265339 n)) (if (even? n) 1 0))))
(define (A265336 n) (A080791 (A263273 n)))

Crossrefs

Cf. A080791, A263273, A265337, A265339, A265340.

Sequence in context: A253830 A167625 A107261 * A219782 A035788 A097559

Adjacent sequences: A265333 A265334 A265335 * A265337 A265338 A265339

Keyword

nonn,base

Author

Antti Karttunen, Dec 18 2015

Status

approved