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 A262906 #6 Oct 11 2015 10:55:04 %S A262906 0,1,1,3,4,5,4,7,8,7,8,9,9,11,12,13,14,15,14,17,18,19,17,21,22,20,21, %T A262906 25,23,27,24,29,27,31,27,33,34,35,31,37,35,39,34,41,37,43,37,45,41,40, %U A262906 43,49,43,51,44,53,49,55,47,57,53,59,50,61,62,63,55,65,56,67,57,69,65,71,61,73,63,75,64,77,67,68,68,70,77,72,72,74,75,76,75,78,78,80,78,82,89 %N A262906 a(n) = n - A262904(n). %C A262906 Numbers that do not occur in this sequence: 2, 6, 10, 16, 26, 28, 30, 32, 36, 38, 42, 46, 48, 52, 54, 58, 60, 66, 79, 81, 83, 91, 109, 111, 112, 116, 124, 147, 152, 156, ... %H A262906 Antti Karttunen, <a href="/A262906/b262906.txt">Table of n, a(n) for n = 0..65538</a> %F A262906 a(n) = n - A262904(n). %o A262906 (Scheme) (define (A262906 n) (- n (A262904 n))) %Y A262906 Cf. A262904. %K A262906 nonn %O A262906 0,4 %A A262906 _Antti Karttunen_, Oct 07 2015