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 A219685 #5 Jul 23 2025 00:36:22 %S A219685 28,44,922,15763,219216,2709320,35011623,479633094,6609458081, %T A219685 87609413453,1101888673326,13242315279610,153674552267213, %U A219685 1731915355340898,18978190461636053,202216531650350001 %N A219685 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX7 array. %C A219685 Column 7 of A219686 %e A219685 Some solutions for n=3 %e A219685 ..2..2..1..1..1..0..0....1..0..0..0..0..0..0....2..1..1..0..0..0..0 %e A219685 ..2..2..1..1..0..0..0....0..0..0..0..0..0..0....2..1..1..0..0..0..0 %e A219685 ..2..2..2..1..0..0..0....0..0..2..2..2..1..1....2..2..2..0..0..0..0 %K A219685 nonn %O A219685 1,1 %A A219685 _R. H. Hardin_ Nov 25 2012