A268672 a(n) = n - A268395(n).

0, 1, 2, 2, 3, 2, 2, 3, 4, 4, 3, 4, 4, 5, 6, 4, 5, 2, 2, 3, 2, 3, 4, 4, 4, 5, 6, 5, 6, 6, 4, 5, 6, 6, 3, 4, 4, 5, 6, 5, 4, 5, 6, 6, 7, 5, 5, 6, 6, 7, 8, 4, 5, 5, 4, 5, 6, 5, 5, 6, 4, 5, 6, 6, 7, 6, 6, 7, 4, 5, 6, 6, 6, 7, 8, 6, 7, 7, 6, 7, 6, 7, 8, 8, 9, 4, 4, 5, 6, 6, 4, 5, 5, 6, 7, 6, 6, 7, 8, 7, 8, 8, 4, 5, 6, 4, 4, 5, 4, 5, 6, 6, 7, 7, 6, 7, 7, 8, 9, 6, 4

Offset: 0

Author

Antti Karttunen, Feb 10 2016

Keywords

• nonn

Comments

It seems that the sequence stays strictly positive after a(0).

Only 1 seems to be at a(1).

2's occur in this sequence at least in the following positions: 2, 3, 5, 6, 17, 18, 20, 257, 258, 260, 272, 65537, 65538, 65540, 65552, 65792, and in no other location up to 2^21.

See also comments in A268708.

Links

• Antti Karttunen, Table of n, a(n) for n = 0..65537

Crossrefs

Cf. A001317, A268395, A268708.

Cf. A268713 (record positions).

Programs

Scheme

(define (A268672 n) (- n (A268395 n)))

Formula

a(n) = n - A268395(n).