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 A176998 #17 Mar 31 2012 20:55:18 %S A176998 1,10,11,1,100,11,10,1,100,10,110,100,1,10,111,1,100,11,10,1,100,110, %T A176998 111,100,1,10,1000,101,100,111,10,1,1000,110,111,100,1,10,11,1,100, %U A176998 111,10,1,1000,10,111,100,1,10,1000,1,100,111,10,1,100,10,111,100,1,10,1000,1,100,111,10,1,1000,110 %N A176998 a(n) = binary "k-number" for n-rowed Kayles. %C A176998 See Gardner for precise definition. %D A176998 M. Gardner, Mathematical Carnival, Random House, NY, 1975; page 215. %K A176998 nonn %O A176998 1,2 %A A176998 _Susanna Cuyler_, Dec 19 2010