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 A255955 #4 Mar 11 2015 19:23:49 %S A255955 0,11,268,4320,57420,693667,7966632,89193846,988271472,10940887431, %T A255955 121785960374,1368842172885,15580533806736,179950412451030, %U A255955 2111844305863138,25206609225991488,306180443179612144,3786322314445003390,47679058570614625422,611428841624274820553 %N A255955 Number of collections of nonempty multisets with a total of n+5 objects of exactly n colors. %H A255955 Alois P. Heinz, <a href="/A255955/b255955.txt">Table of n, a(n) for n = 0..250</a> %F A255955 a(n) = A255903(n+5,n). %Y A255955 A diagonal of A255903. %K A255955 nonn %O A255955 0,2 %A A255955 _Alois P. Heinz_, Mar 11 2015