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 A255958 #4 Mar 11 2015 19:17:05 %S A255958 0,30,2055,72981,1894152,40923980,787459878,14036460424,237625842970, %T A255958 3884975468811,62058326321705,976716375311644,15239669683840839, %U A255958 236829386474487105,3678614595066520977,57267281252557106640,895416816962839208088,14085236951354534551476 %N A255958 Number of collections of nonempty multisets with a total of n+8 objects of exactly n colors. %H A255958 Alois P. Heinz, <a href="/A255958/b255958.txt">Table of n, a(n) for n = 0..250</a> %F A255958 a(n) = A255903(n+8,n). %Y A255958 A diagonal of A255903. %K A255958 nonn %O A255958 0,2 %A A255958 _Alois P. Heinz_, Mar 11 2015