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 A217544 #6 Jul 22 2025 23:40:33 %S A217544 37,37,1369,10213,128051,1342855,15130953,166010145,1837220123, %T A217544 20265096203,223831206295,2471187319639,27287372688681, %U A217544 301292816760745,3326790789572465,36733212610237445,405596153254345945 %N A217544 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..2 nX5 array. %C A217544 Column 5 of A217547 %H A217544 R. H. Hardin, <a href="/A217544/b217544.txt">Table of n, a(n) for n = 1..22</a> %e A217544 Some solutions for n=3 %e A217544 ..0..0..0..1..1....2..2..2..2..2....0..0..0..0..1....2..0..0..0..1 %e A217544 ..0..0..0..0..0....1..1..1..1..2....0..0..0..0..0....0..0..0..0..1 %e A217544 ..1..1..0..0..0....1..1..1..1..2....0..0..1..0..0....0..0..0..1..2 %K A217544 nonn %O A217544 1,1 %A A217544 _R. H. Hardin_ Oct 06 2012