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 A231974 #6 Jul 23 2025 06:46:03 %S A231974 169,1764,24964,417316,6507601,100540729,1557328369,24225988609, %T A231974 376708702756,5849616285604,90862303037584,1411766023575625, %U A231974 21933150300008704,340734844103850729,5293483573712466276 %N A231974 Number of (n+1)X(5+1) 0..1 arrays with no element having a strict majority of its horizontal and vertical neighbors equal to one. %C A231974 Column 5 of A231977 %H A231974 R. H. Hardin, <a href="/A231974/b231974.txt">Table of n, a(n) for n = 1..210</a> %e A231974 Some solutions for n=2 %e A231974 ..1..0..0..0..0..1....0..1..1..0..0..0....1..0..0..0..0..0....0..0..0..0..0..0 %e A231974 ..1..0..1..0..0..0....0..0..0..0..1..1....0..0..1..0..0..1....1..1..1..1..0..1 %e A231974 ..0..0..1..0..0..0....0..1..0..0..0..0....0..0..1..0..0..0....0..0..0..0..0..0 %K A231974 nonn %O A231974 1,1 %A A231974 _R. H. Hardin_, Nov 16 2013