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 A246290 #4 Aug 21 2014 12:10:22 %S A246290 329646772667218349211759153151614073700352000000000, %T A246290 703598071580910844557578736486805078906031308800000000, %U A246290 801344946597209027469052254411528181380862810521600000000,648134562127074977948232885515066412077229522970214400000000 %N A246290 Number of endofunctions on [n] with cycles of nine distinct lengths. %H A246290 Alois P. Heinz, <a href="/A246290/b246290.txt">Table of n, a(n) for n = 45..200</a> %Y A246290 Column k=9 of A242027. %K A246290 nonn %O A246290 45,1 %A A246290 _Alois P. Heinz_, Aug 21 2014