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 A058784 #12 Jan 29 2020 20:33:35 %S A058784 1,1,6,50,1062,56712,7295812,1817321457,750572034647,467477187494249, %T A058784 413492386704135759,498000976932085045800,791133947048635010571251, %U A058784 1616618616930983136958492360,4162734189568898641317813946712,13276910075946265356264268787123401 %N A058784 Number of n-rowed binary matrices with all row sums 5, up to row and column permutation; bipartite graphs with all nodes of degree 5 in a distinguished bipartite n-block, up to isomorphism. %H A058784 <a href="/A050535/a050535.pdf">Number of m-rowed binary matrices with all row sums equal to n, up to row and column permutation</a> %Y A058784 Row n=5 of A331461. %Y A058784 Cf. A050535, A050913, A058783, A058785. %K A058784 nonn %O A058784 0,3 %A A058784 _Vladeta Jovovic_, Nov 28 2000 %E A058784 a(7)-a(15) from _Max Alekseyev_, May 04 2018