cp's OEIS Frontend

A239533 Number of (n+1)X(4+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.

%I A239533 #6 Jul 23 2025 10:59:55
%S A239533 16,16,1536,11108,293741,3785280,71388971,1093269814,18727824939,
%T A239533 301846514891,5028043624263,82269916141918,1359237851307197,
%U A239533 22338985313123955,368190066381319758,6059086220408776630
%N A239533 Number of (n+1)X(4+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.
%C A239533 Column 4 of A239537
%H A239533 R. H. Hardin, <a href="/A239533/b239533.txt">Table of n, a(n) for n = 1..210</a>
%e A239533 Some solutions for n=5
%e A239533 ..0..1..0..2..0....0..1..0..1..2....0..1..0..0..2....0..1..0..1..2
%e A239533 ..0..1..0..2..0....0..1..0..1..2....0..1..0..0..2....0..1..0..1..2
%e A239533 ..0..1..0..1..0....1..2..0..1..2....0..2..1..1..2....1..2..0..1..2
%e A239533 ..0..2..1..1..0....1..2..0..1..0....0..2..1..1..2....1..2..0..1..2
%e A239533 ..1..2..1..1..0....1..0..1..2..0....2..0..2..2..1....0..1..0..1..0
%e A239533 ..1..2..1..1..0....1..0..1..2..0....2..0..2..2..1....0..1..0..1..0
%K A239533 nonn
%O A239533 1,1
%A A239533 _R. H. Hardin_, Mar 21 2014