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 A147715 #5 Aug 13 2013 14:05:53 %S A147715 1,129644790,1914992149823954412750, %T A147715 3118154713099658349261989389351453752, %U A147715 1091385182415179567904447175900607727196876211756373000 %N A147715 Late-growing permutations: number of permutations of 17 indistinguishable copies of 1..n with every partial sum <= the same partial sum averaged over all permutations. %Y A147715 Cf. A147681. %Y A147715 Column k=17 of A215561. %K A147715 nonn %O A147715 1,2 %A A147715 _R. H. Hardin_ May 01 2009