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 A224112 #5 Jul 23 2025 04:59:42 %S A224112 130,29922,5286827,762031090,93991412090,10255460738958, %T A224112 1013220280453733,92210504283006019,7831312042691678373, %U A224112 627005888003354035318 %N A224112 Number of nX4 0..3 arrays with row sums and column sums unimodal. %C A224112 Column 4 of A224113 %e A224112 Some solutions for n=3 %e A224112 ..0..0..2..2....0..0..1..0....0..2..1..0....0..0..2..2....2..2..3..2 %e A224112 ..2..0..3..0....0..2..2..2....2..0..3..0....0..2..3..0....2..2..1..0 %e A224112 ..0..2..1..2....2..0..2..2....0..2..1..2....3..3..1..2....0..0..0..1 %K A224112 nonn %O A224112 1,1 %A A224112 _R. H. Hardin_ Mar 31 2013