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 A267996 #6 Mar 21 2025 22:07:21 %S A267996 964,929296,895841344,766970396055,615504325372174,465926430628469626, %T A267996 336115545834366400786,232695467807668413935292 %N A267996 Number of n X 5 0..3 arrays with every repeated value in every row and column greater than or equal to the previous repeated value. %e A267996 Some solutions for n=1: %e A267996 ..3..1..0..1..1....3..3..3..2..0....0..3..3..3..1....3..1..0..2..2 %Y A267996 Column 5 of A267997. %K A267996 nonn %O A267996 1,1 %A A267996 _R. H. Hardin_, Jan 24 2016