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 A217961 #6 Jul 22 2025 23:44:22 %S A217961 37,1341,45043,1483419,48942485,1616011915,53384245121,1763824455789, %T A217961 58280433586547,1925743948194651,63632217591257991, %U A217961 2102599141468586591,69476223859440531703,2295704722842360530889,75857038242320718831657 %N A217961 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..2 nX5 array. %C A217961 Column 5 of A217964 %H A217961 R. H. Hardin, <a href="/A217961/b217961.txt">Table of n, a(n) for n = 1..20</a> %e A217961 Some solutions for n=3 %e A217961 ..2..1..0..0..0....2..1..1..1..0....2..1..2..0..1....1..0..0..0..0 %e A217961 ..1..0..0..0..1....1..1..0..0..0....1..0..0..0..0....0..0..1..0..1 %e A217961 ..0..0..1..1..2....1..2..0..0..2....1..0..0..0..1....2..2..2..1..2 %K A217961 nonn %O A217961 1,1 %A A217961 _R. H. Hardin_ Oct 16 2012