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 A219438 #6 Jul 23 2025 00:27:26 %S A219438 12,96,1072,10157,98584,952625,9230353,89418051,865738604,8382034095, %T A219438 81160468697,785871654803,7609490388891,73681292305272, %U A219438 713442897702121,6908151296019613,66890527908145736,647690255888809878 %N A219438 Unmatched value maps: number of nX5 binary arrays indicating the locations of corresponding elements not equal to any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX5 array. %C A219438 Column 5 of A219441 %H A219438 R. H. Hardin, <a href="/A219438/b219438.txt">Table of n, a(n) for n = 1..62</a> %e A219438 Some solutions for n=3 %e A219438 ..1..0..0..0..0....1..0..0..0..0....1..0..1..0..0....1..0..0..0..0 %e A219438 ..1..0..1..0..0....0..0..0..0..0....0..0..0..0..0....1..0..0..1..0 %e A219438 ..1..1..1..0..1....0..1..0..0..0....0..0..1..0..0....0..0..0..1..1 %K A219438 nonn %O A219438 1,1 %A A219438 _R. H. Hardin_ Nov 20 2012