A265337 Number of 1-bits in base-3 reversal of n: a(n) = A000120(A263273(n)).

0, 1, 1, 2, 1, 3, 2, 2, 1, 2, 2, 3, 2, 3, 3, 3, 1, 3, 2, 3, 2, 4, 3, 4, 2, 2, 3, 4, 3, 5, 4, 3, 1, 4, 4, 3, 2, 5, 4, 4, 2, 3, 2, 3, 3, 6, 2, 5, 2, 4, 3, 4, 3, 5, 4, 4, 3, 2, 3, 2, 4, 5, 3, 4, 1, 5, 3, 3, 2, 3, 3, 4, 2, 3, 5, 4, 3, 4, 4, 4, 2, 3, 3, 4, 3, 5, 6, 4, 2, 5, 4, 5, 4, 6, 5, 5, 2, 3, 4, 5, 3, 5, 3, 7, 3, 6, 4, 6, 4, 4, 4, 5, 3, 3, 5, 4, 5, 5, 5, 6, 4, 5, 4, 4, 3, 5, 4, 5, 4

Offset: 0

Author

Antti Karttunen, Dec 18 2015

Keywords

• nonn
• base

Links

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

Crossrefs

Cf. A000120, A263273, A265336, A265339, A265340.

Programs

Scheme

(definec (A265337 n) (if (zero? n) 0 (+ (A265337 (A265339 n)) (if (odd? n) 1 0))))

Formula

a(n) = A000120(A263273(n)).

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

a(n) = A265340(n) - A265336(n).