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 A196334 #7 Jun 02 2025 04:22:51 %S A196334 8,34,111,894,3793,25295,169152,868710,4661189,28620947,176947794, %T A196334 1020483285,5753457776,33726487544,201541895718,1182711274308, %U A196334 6838120164129,39848553924565,234753917513044,1378789238484503 %N A196334 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,1,2 for x=0,1,2,3,4. %C A196334 Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 3's, every 3 is next to 3 1's, every 4 is next to 4 2's %C A196334 Column 5 of A196337 %H A196334 R. H. Hardin, <a href="/A196334/b196334.txt">Table of n, a(n) for n = 1..200</a> %e A196334 Some solutions for n=4 %e A196334 ..0..0..0..0..0....1..3..1..0..0....1..0..0..0..1....1..0..1..1..0 %e A196334 ..1..3..1..3..1....0..1..3..0..0....1..0..0..0..1....1..1..2..3..1 %e A196334 ..3..1..1..1..3....1..1..1..0..0....1..3..1..3..1....0..1..3..1..1 %e A196334 ..1..0..0..0..1....1..0..1..1..1....0..1..3..1..0....0..1..1..0..0 %K A196334 nonn %O A196334 1,1 %A A196334 _R. H. Hardin_ Oct 01 2011