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 A218053 #6 Jul 22 2025 23:46:46 %S A218053 94,94,8836,114886,2585920,49284832,1007805010,20132968950, %T A218053 404539599336,8108559847952,162698302825806,3263819697056656, %U A218053 65480211527750358,1313638552030968606,26353952989359288372,528706130652594852786 %N A218053 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..3 nX5 array. %C A218053 Column 5 of A218056 %H A218053 R. H. Hardin, <a href="/A218053/b218053.txt">Table of n, a(n) for n = 1..210</a> %e A218053 Some solutions for n=3 %e A218053 ..0..0..0..2..2....3..1..1..1..2....0..0..2..0..0....0..0..0..0..0 %e A218053 ..0..0..0..0..0....1..1..1..1..1....0..0..0..0..0....0..0..0..0..0 %e A218053 ..1..1..0..0..0....1..1..1..1..1....2..0..0..0..2....3..2..2..0..0 %K A218053 nonn %O A218053 1,1 %A A218053 _R. H. Hardin_ Oct 19 2012