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 A233060 #5 Jul 23 2025 07:50:05
%S A233060 22,130,723,4393,26819,162916,986252,5942365,35694392,213988742,
%T A233060 1280906379,7658873200,45771779047,273459449270,1633697384455
%N A233060 Number of (n+1)X(3+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..3+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.
%C A233060 Column 3 of A233062
%e A233060 Some solutions for n=5
%e A233060 ..0..0..1..0....0..0..1..0....0..0..0..1....0..0..1..1....0..0..1..1
%e A233060 ..1..0..0..0....0..0..1..1....0..0..0..1....1..0..0..1....0..1..0..1
%e A233060 ..1..0..0..0....1..0..0..1....1..0..0..0....1..0..0..1....1..0..0..1
%e A233060 ..0..0..1..1....0..0..1..1....0..0..1..0....0..0..1..1....0..0..1..1
%e A233060 ..0..1..0..1....0..1..0..1....0..0..0..1....0..1..1..0....0..1..1..1
%e A233060 ..1..1..1..1....0..1..1..0....0..1..1..1....0..1..1..1....1..1..1..1
%K A233060 nonn
%O A233060 1,1
%A A233060 _R. H. Hardin_, Dec 03 2013