A372554 a(n) = A050602(n, 2n+1).

0, 2, 0, 2, 0, 4, 2, 2, 0, 2, 0, 4, 2, 3, 2, 2, 0, 2, 0, 2, 0, 6, 4, 4, 2, 2, 2, 3, 2, 3, 2, 2, 0, 2, 0, 2, 0, 4, 2, 2, 0, 2, 0, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 5, 3, 3, 2, 2, 2, 3, 2, 3, 2, 2, 0, 2, 0, 2, 0, 4, 2, 2, 0, 2, 0, 4, 2, 3, 2, 2, 0, 2, 0, 2, 0, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2

Offset: 0

Author

Antti Karttunen, May 05 2024

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 0..100000
• Index entries for sequences related to binary expansion of n

Crossrefs

Cf. A022340 (positions of 0's), A050602.

Cf. A002450 (seems to give the positions of records).

Cf. also A329603.

Programs

PARI

A050602sq(x,y) = if(!bitand(x,y), 0, 1+A050602sq(bitxor(x,y),2*bitand(x,y)));
A372554(n) = A050602sq(n,n+n+1);