This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A268672 #11 Feb 12 2016 10:32:03 %S A268672 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, %T A268672 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, %U A268672 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 %N A268672 a(n) = n - A268395(n). %C A268672 It seems that the sequence stays strictly positive after a(0). %C A268672 Only 1 seems to be at a(1). %C A268672 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. %C A268672 See also comments in A268708. %H A268672 Antti Karttunen, <a href="/A268672/b268672.txt">Table of n, a(n) for n = 0..65537</a> %F A268672 a(n) = n - A268395(n). %o A268672 (Scheme) (define (A268672 n) (- n (A268395 n))) %Y A268672 Cf. A001317, A268395, A268708. %Y A268672 Cf. A268713 (record positions). %K A268672 nonn %O A268672 0,3 %A A268672 _Antti Karttunen_, Feb 10 2016