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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.

A231832 Number of n X n 0..3 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.

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%I A231832 #7 Jul 23 2025 06:42:41
%S A231832 4,50,4508,3477361,24188209253,1254045703514371,474822731471136470440,
%T A231832 1348354196926200275839295164,29381088329574641941731352369292061,
%U A231832 4908846924825797705595322427394823109676747
%N A231832 Number of n X n 0..3 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors.
%C A231832 Diagonal of A231839
%e A231832 Some solutions for n=3
%e A231832 ..1..1..3....3..2..2....1..1..0....3..1..0....2..2..2....0..0..1....2..2..1
%e A231832 ..1..1..1....2..1..1....0..0..1....0..0..0....2..3..1....0..0..2....1..1..3
%e A231832 ..1..1..2....1..1..2....0..3..3....0..2..2....0..0..0....0..3..3....2..3..3
%K A231832 nonn
%O A231832 1,1
%A A231832 _R. H. Hardin_, Nov 14 2013

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