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 A319084 #4 Sep 12 2018 15:09:58 %S A319084 0,1,3,5,9,11,27,29,35,59 %N A319084 Numbers k such that the denominator of the Bernoulli polynomial B_k(x) is the squarefree kernel of k+1. %C A319084 See A318256 for some background information. %F A319084 Numbers k such that A144845(k) / A007947(k+1) = 1. %Y A319084 Cf. A007947, A144845, A318256. %K A319084 nonn,more %O A319084 1,3 %A A319084 _Peter Luschny_, Sep 12 2018