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 A267962 #4 Jan 22 2016 14:28:29 %S A267962 24,576,9750,157182,2253828,30649446,392792334,4834114074,57285557832, %T A267962 658558589712,7367813384346,80528684687118,861990117512832, %U A267962 9057816965527086,93605798560795056,952894000040209068 %N A267962 Number of nX3 0..2 arrays with every repeated value in every row and column greater than the previous repeated value. %C A267962 Column 3 of A267966. %H A267962 R. H. Hardin, <a href="/A267962/b267962.txt">Table of n, a(n) for n = 1..210</a> %H A267962 R. H. Hardin, <a href="/A267962/a267962.txt">Empirical recurrence of order 60</a> %F A267962 Empirical recurrence of order 60 (see link above) %e A267962 Some solutions for n=4 %e A267962 ..2..0..0....0..2..1....0..2..1....1..2..0....0..0..1....0..0..2....0..1..0 %e A267962 ..0..1..1....2..0..2....2..2..0....0..2..1....2..1..1....2..0..1....2..0..1 %e A267962 ..2..0..2....0..2..1....2..1..0....1..1..0....1..0..0....0..2..0....1..2..2 %e A267962 ..0..1..0....1..2..1....0..0..2....2..0..0....1..0..1....2..1..0....1..1..0 %Y A267962 Cf. A267966. %K A267962 nonn %O A267962 1,1 %A A267962 _R. H. Hardin_, Jan 22 2016