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 A232136 #6 Jul 23 2025 06:54:05 %S A232136 208772,623543776,1875654465544,5664993176292288,17107853745211295232, %T A232136 51664900164122521134304,156025607439258576501944264, %U A232136 471190133881437195999528168348,1422972465138592273774293522582768 %N A232136 Number of (n+1)X(7+1) 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order. %C A232136 Column 7 of A232137 %H A232136 R. H. Hardin, <a href="/A232136/b232136.txt">Table of n, a(n) for n = 1..210</a> %e A232136 Some solutions for n=1 %e A232136 ..0..1..2..1..0..1..0..2....0..1..1..2..0..1..0..1....0..1..2..2..1..1..0..0 %e A232136 ..0..0..2..1..0..1..0..2....0..2..1..1..2..1..0..1....0..1..0..2..0..1..2..0 %K A232136 nonn %O A232136 1,1 %A A232136 _R. H. Hardin_, Nov 19 2013