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 A204915 #9 Sep 20 2018 00:29:54 %S A204915 1,3,2,3,1,6,2,3,4,5,11,6,7,8,4,3,22,10,16,5,2,18,43,6,29,25,37,8,46, %T A204915 14,37,9,11,33,17,10,89,49,7,5,79,20,67,18,4,43,118,9,92,53,22,25,135, %U A204915 54,11,8,16,73,137,14 %N A204915 Least k such that n divides A204914(k), the k-th difference of two squared primes. %C A204915 For a guide to related sequences, see A204892. %t A204915 (See the program at A204916.) %Y A204915 Cf. A204908, A204900, A204892. %K A204915 nonn %O A204915 1,2 %A A204915 _Clark Kimberling_, Jan 20 2012