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 A219658 #8 Nov 26 2012 00:00:20 %S A219658 3,4,8,9,13,14,18,19,20,21,22,26,27,31,32,36,37,41,42,43,44,45,49,50, %T A219658 54,55,59,60,64,65,66,67,68,72,73,77,78,82,83,87,88,89,90,91,95,96, %U A219658 100,101,105,106,110,111,112,113,114,115,116,117,118,122,123,127 %N A219658 Complement of A219650. Natural numbers that do not occur in A219651. %C A219658 These are positive integers i for which there does not exist any k such that A034968(i+k) = k. %H A219658 A. Karttunen, <a href="/A219658/b219658.txt">Table of n, a(n) for n = 1..10000</a> %o A219658 (Scheme with _Antti Karttunen_'s Intseq-library): %o A219658 (define A219658 (COMPLEMENT 1 A219650)) %Y A219658 A219650, A219651, A219666. Analogous sequence for binary system: A055938, for Zeckendorf expansion: A219638. %K A219658 nonn %O A219658 1,1 %A A219658 _Antti Karttunen_, Nov 25 2012