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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.

A231124 Number of (n+1)X(n+1) white-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

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%I A231124 #6 Jul 23 2025 06:15:51
%S A231124 1,8,308,27664,6794904,4614346288,8349491299560,42088669314695072,
%T A231124 564457878709147238868,21095556114328677203104400,
%U A231124 2097381737046509117354544061212,581111029966060833293204483082983504
%N A231124 Number of (n+1)X(n+1) white-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.
%C A231124 Diagonal of A231131
%e A231124 Some solutions for n=4
%e A231124 ..0..x..0..x..0....0..x..1..x..1....0..x..1..x..1....0..x..1..x..2
%e A231124 ..x..1..x..2..x....x..2..x..0..x....x..1..x..2..x....x..2..x..0..x
%e A231124 ..2..x..1..x..1....1..x..2..x..0....0..x..2..x..1....1..x..0..x..1
%e A231124 ..x..1..x..0..x....x..0..x..2..x....x..2..x..0..x....x..2..x..0..x
%e A231124 ..2..x..2..x..1....1..x..0..x..1....0..x..0..x..2....0..x..2..x..2
%K A231124 nonn
%O A231124 1,2
%A A231124 _R. H. Hardin_, Nov 04 2013

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