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 A218178 #6 Jul 22 2025 23:49:21 %S A218178 94,5494,434210,25006046,1661620524,106842964082,6885852440176, %T A218178 445345491313290,28746813388211212,1856652582082775172, %U A218178 119924857962662075444,7745130383927844076646,500242581397299885168424 %N A218178 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nX5 array. %C A218178 Column 5 of A218181 %H A218178 R. H. Hardin, <a href="/A218178/b218178.txt">Table of n, a(n) for n = 1..65</a> %e A218178 Some solutions for n=3 %e A218178 ..0..0..3..1..0....1..1..3..1..3....0..0..0..2..3....0..0..0..0..2 %e A218178 ..0..2..3..0..0....1..1..1..1..1....0..0..2..3..3....1..0..0..3..2 %e A218178 ..0..0..3..1..0....1..1..3..1..3....0..0..1..2..3....1..1..1..1..3 %K A218178 nonn %O A218178 1,1 %A A218178 _R. H. Hardin_ Oct 22 2012