cp's OEIS Frontend

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.

A238321 Number of (n+1)X(6+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors.

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%I A238321 #6 Jul 23 2025 10:51:57
%S A238321 292,50232,4245918,261676376,17315827838,1266938409578,93481623913793,
%T A238321 6747651769489946,483084194221969236,34692892698038230306,
%U A238321 2498614025548228474087,179957391346727247579782
%N A238321 Number of (n+1)X(6+1) 0..2 arrays with no element greater than all horizontal neighbors or less than all vertical neighbors.
%C A238321 Column 6 of A238323
%H A238321 R. H. Hardin, <a href="/A238321/b238321.txt">Table of n, a(n) for n = 1..208</a>
%e A238321 Some solutions for n=2
%e A238321 ..2..2..2..0..0..1..1....1..1..2..2..2..2..2....0..1..2..2..2..1..1
%e A238321 ..2..2..0..0..0..0..0....0..0..2..2..1..2..2....0..0..1..2..2..1..0
%e A238321 ..2..2..0..2..2..0..0....0..0..2..2..1..2..2....0..0..1..2..2..2..0
%K A238321 nonn
%O A238321 1,1
%A A238321 _R. H. Hardin_, Feb 24 2014