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 A219594 #5 Jul 23 2025 00:33:52 %S A219594 28,112,2415,51122,939006,18945258,415752625,9020862207,186931045741, %T A219594 3664369196641 %N A219594 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX7 array. %C A219594 Column 7 of A219595 %e A219594 Some solutions for n=3 %e A219594 ..1..1..1..0..0..0..0....0..0..0..0..0..0..0....2..0..0..0..0..0..0 %e A219594 ..1..1..0..0..0..0..0....0..0..0..0..0..0..0....2..1..0..0..0..0..0 %e A219594 ..2..2..1..0..0..1..2....2..2..2..1..1..1..1....2..1..0..0..0..0..0 %K A219594 nonn %O A219594 1,1 %A A219594 _R. H. Hardin_ Nov 23 2012