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 A224111 #7 Jul 23 2025 04:59:36 %S A224111 50,3060,141112,5286827,169786856,4837645361,125243425246, %T A224111 2997702534361,67199044773027,1425028874634334,28814020738905085, %U A224111 559067607301700698,10463117115709609406,189698093216997989976,3343758094368043618098 %N A224111 Number of nX3 0..3 arrays with row sums and column sums unimodal. %C A224111 Column 3 of A224113 %H A224111 R. H. Hardin, <a href="/A224111/b224111.txt">Table of n, a(n) for n = 1..32</a> %e A224111 Some solutions for n=3 %e A224111 ..0..2..1....0..2..2....0..0..0....2..3..0....0..1..1....0..2..3....2..3..0 %e A224111 ..3..3..2....1..3..2....1..0..2....2..3..1....2..3..1....3..3..1....2..3..3 %e A224111 ..0..1..0....3..0..1....0..3..1....1..3..3....2..3..1....1..0..1....1..0..2 %K A224111 nonn %O A224111 1,1 %A A224111 _R. H. Hardin_ Mar 31 2013