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 A164711 #7 Mar 11 2014 01:32:46 %S A164711 18,20,34,37,38,40,41,44,50,52,66,68,69,70,72,74,75,77,78,80,81,82,83, %T A164711 84,88,89,92,98,101,102,104,105,108,114,116,130,132,133,134,137,138, %U A164711 139,140,141,142,144,145,146,148,149,150,151,152,154,155,157,158,160,161 %N A164711 Those positive integers missing from sequence A164710. Those positive integers that, when written in binary, contain at least two runs of 0's that are of differing lengths. %C A164711 Clarification: A binary number consists of "runs" completely of 1's alternating with runs completely of 0's. No two or more runs all of the same digit are adjacent. %Y A164711 Cf. A164710. %K A164711 base,nonn %O A164711 1,1 %A A164711 _Leroy Quet_, Aug 23 2009 %E A164711 Extended by _Ray Chandler_, Mar 14 2010