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 A274863 #3 Jul 09 2016 17:36:28 %S A274863 1,1,2,4,8,16,32,64,128,256,512,1024,2048,4128,8320,16768,33792,68096, %T A274863 137216,279632,570784,1166128,2383312,4871312,9955760,20713120, %U A274863 43286304,90751688,190621800,400733360,842536776,1825618200,3990868296,8789613840,19459895108 %N A274863 Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of six. %Y A274863 Column k=6 of A274859. %K A274863 nonn %O A274863 0,3 %A A274863 _Alois P. Heinz_, Jul 09 2016