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A232952 Number of nX5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.

%I A232952 #6 Jul 23 2025 07:45:38
%S A232952 81,4629,283131,17429409,1074244299,66226131273,4082986991091,
%T A232952 251727862281441,15519780149309307,956841601733733945,
%U A232952 58992197961597648195,3637048689898637056977,224235130894279830031179
%N A232952 Number of nX5 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.
%C A232952 Column 5 of A232955
%H A232952 R. H. Hardin, <a href="/A232952/b232952.txt">Table of n, a(n) for n = 1..210</a>
%F A232952 Empirical: a(n) = 78*a(n-1) -1043*a(n-2) +2012*a(n-3) +10236*a(n-4) -39726*a(n-5) +41724*a(n-6) -6408*a(n-7) -8680*a(n-8) +2592*a(n-9) -96*a(n-10)
%e A232952 Some solutions for n=2
%e A232952 ..0..0..2..2..0....0..1..3..1..3....0..2..0..2..0....0..0..0..0..2
%e A232952 ..1..0..2..2..0....0..1..3..3..1....0..1..3..2..2....2..0..1..0..2
%K A232952 nonn
%O A232952 1,1
%A A232952 _R. H. Hardin_, Dec 02 2013