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 A147707 #5 Aug 13 2013 14:02:56 %S A147707 1,742900,6034149862347600,1406943391115083641966787200, %T A147707 25264175056254327045276801827351798400000 %N A147707 Late-growing permutations: number of permutations of 13 indistinguishable copies of 1..n with every partial sum <= the same partial sum averaged over all permutations. %Y A147707 Cf. A147681. %Y A147707 Column k=13 of A215561. %K A147707 nonn %O A147707 1,2 %A A147707 _R. H. Hardin_ May 01 2009