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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.

A231262 Number of (n+1)X(7+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.

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%I A231262 #6 Jul 23 2025 06:21:16
%S A231262 44,1471,94234,5921588,373664749,23652344858,1496478177166,
%T A231262 94693898367381,5992336358720087,379199481911896240,
%U A231262 23995972977026962928,1518480393702303769523,96090421103022757089502
%N A231262 Number of (n+1)X(7+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.
%C A231262 Column 7 of A231263
%H A231262 R. H. Hardin, <a href="/A231262/b231262.txt">Table of n, a(n) for n = 1..210</a>
%e A231262 Some solutions for n=3
%e A231262 ..0..0..0..1..1..1..0..0....0..0..0..1..1..1..1..0....0..0..1..1..0..0..0..0
%e A231262 ..0..0..1..1..1..0..0..2....0..0..1..1..1..1..0..0....0..1..1..0..0..1..1..2
%e A231262 ..1..1..1..1..2..2..2..1....0..1..2..2..2..2..0..0....1..1..2..2..1..1..2..2
%e A231262 ..1..1..1..2..2..2..1..1....1..2..2..2..2..2..2..2....2..2..2..1..1..2..2..2
%K A231262 nonn
%O A231262 1,1
%A A231262 _R. H. Hardin_, Nov 06 2013

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