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 A233065 #6 Jul 23 2025 07:50:35
%S A233065 66,564,4393,30692,197625,1180594,6637131,35376058,180164000,
%T A233065 881727864,4167848342,19104362313,85219992355,371017908349,
%U A233065 1580512646968,6602183440874,27094731309792,109419938432611,435460987461844
%N A233065 Number of (4+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..4+1} nondecreasing.
%C A233065 Row 4 of A233062
%H A233065 R. H. Hardin, <a href="/A233065/b233065.txt">Table of n, a(n) for n = 1..22</a>
%e A233065 Some solutions for n=4
%e A233065 ..0..0..0..0..0....1..0..0..0..0....0..0..0..1..0....0..1..1..1..1
%e A233065 ..0..0..1..0..1....0..1..0..1..0....0..0..1..0..1....1..1..0..1..1
%e A233065 ..0..1..0..1..1....1..1..0..0..1....0..1..0..1..1....1..0..1..1..1
%e A233065 ..0..1..0..1..1....0..0..1..1..1....0..0..1..1..1....0..1..1..1..1
%e A233065 ..1..0..1..1..1....0..0..1..1..1....0..0..1..1..1....0..1..1..1..1
%K A233065 nonn
%O A233065 1,1
%A A233065 _R. H. Hardin_, Dec 03 2013