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 A200856 #6 Jul 22 2025 15:58:55 %S A200856 767,111222,13295014,1408572430,139139776965,13079416454738, %T A200856 1191594088382132,105834280697367652 %N A200856 Number of nX6 0..4 arrays with every row and column running average nondecreasing rightwards and downwards. %C A200856 Column 6 of A200858 %e A200856 Some solutions for n=3 %e A200856 ..0..0..1..1..2..1....0..0..0..0..0..1....0..0..0..2..1..2....0..0..1..1..1..1 %e A200856 ..0..0..1..3..2..2....0..0..0..0..1..2....0..0..0..2..4..2....0..0..1..2..1..2 %e A200856 ..0..0..1..4..2..3....0..0..0..4..1..4....0..0..1..2..4..2....0..0..1..2..1..4 %K A200856 nonn %O A200856 1,1 %A A200856 _R. H. Hardin_ Nov 23 2011