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 A205009 #6 Feb 27 2013 09:44:10 %S A205009 1,3,5,3,2,5,6,9,5,10,28,21,15,6,27,9,8,5,4,27,21,28,7,21,10,15,18,21, %T A205009 14,27,66,9,28,8,23,40,38,28,36,33,13,21,120,28,40,49,22,21,23,10,18, %U A205009 44,27,18,45,21,28,14,189,27 %N A205009 Least k such that n divides the k-th difference between distinct central binomials coefficients. %C A205009 The ordering of the differences between distinct central binomials coefficients is given by A205008. For a guide to related sequences, see A204892. %t A205009 (See the program at A205010.) %Y A205009 Cf. A205010, A204892. %K A205009 nonn %O A205009 1,2 %A A205009 _Clark Kimberling_, Jan 22 2012