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 A267973 #3 Jan 23 2016 10:00:55 %S A267973 964,929296,648144348,422888259007,247835569655956,135605581008614210, %T A267973 69710148917754637644,34062642857359171937976 %N A267973 Number of nX5 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value. %C A267973 Column 5 of A267974. %e A267973 Some solutions for n=1 %e A267973 ..3..2..3..3..2....0..1..0..2..3....0..0..3..3..2....0..0..3..2..1 %Y A267973 Cf. A267974. %K A267973 nonn %O A267973 1,1 %A A267973 _R. H. Hardin_, Jan 23 2016