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 A223814 #5 Jul 23 2025 04:33:31 %S A223814 86,9783,921010,76453838,5767953144,405333095737,26977674423993, %T A223814 1720880680824848,106119501516207457,6367010698793138060 %N A223814 Number of nX5 0..2 arrays with row sums nondecreasing and column sums unimodal. %C A223814 Column 5 of A223815 %e A223814 Some solutions for n=3 %e A223814 ..0..0..0..1..1....0..0..0..2..1....0..0..0..1..0....0..0..1..0..0 %e A223814 ..0..1..1..1..0....0..0..2..2..1....0..1..2..0..0....0..2..0..1..1 %e A223814 ..1..0..1..1..0....2..2..2..2..2....1..0..2..0..1....2..0..1..1..0 %K A223814 nonn %O A223814 1,1 %A A223814 _R. H. Hardin_ Mar 27 2013