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 A255960 #4 Mar 11 2015 19:11:12 %S A255960 0,56,7045,407367,15939998,492315490,13017110235,309183689612, %T A255960 6804360339112,141693764935536,2833749745048664,55021487525610716, %U A255960 1045661876232247218,19571912311804506186,362535974017212548973,6671022440871525234600,122311996588305966744504 %N A255960 Number of collections of nonempty multisets with a total of n+10 objects of exactly n colors. %H A255960 Alois P. Heinz, <a href="/A255960/b255960.txt">Table of n, a(n) for n = 0..250</a> %F A255960 a(n) = A255903(n+10,n) %Y A255960 A diagonal of A255903. %K A255960 nonn %O A255960 0,2 %A A255960 _Alois P. Heinz_, Mar 11 2015