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 A065757 #5 May 24 2015 03:54:17 %S A065757 5,230,60655,59885980,168838628985,1135186431830610, %T A065757 16017412514989202435,431206091160978438365960, %U A065757 20576087755624257977612141965,1641229694168973589934782263724990 %N A065757 Second column of A065755. %H A065757 Michael Domaratzki, <a href="http://www.cs.uwaterloo.ca/journals/JIS/VOL7/Domaratzki/doma23.html">Combinatorial Interpretations of a Generalization of the Genocchi Numbers</a>, Journal of Integer Sequences, Vol. 7 (2004), Article 04.3.6. %Y A065757 Cf. A065755, A065756. %K A065757 easy,nonn %O A065757 0,1 %A A065757 Mike Domaratzki (mdomaratzki(AT)alumni.uwaterloo.ca), Nov 17 2001