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A197670 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.

%I A197670 #7 Jun 02 2025 05:04:38
%S A197670 16,642,14503,403960,11277331,311676959,8613257822,239118653300,
%T A197670 6630227642552,183756345226485,5094599088185193,141246701196281961,
%U A197670 3915786139554013344,108558677747367102730,3009656266880644396542
%N A197670 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,0,1 for x=0,1,2,3,4.
%C A197670 Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 1's
%C A197670 Column 6 of A197672
%H A197670 R. H. Hardin, <a href="/A197670/b197670.txt">Table of n, a(n) for n = 1..133</a>
%e A197670 Some solutions containing all values 0 to 4 for n=4
%e A197670 ..0..0..1..1..0..0....0..3..0..0..0..0....1..1..0..1..1..0....0..0..2..1..0..0
%e A197670 ..1..1..4..1..0..3....3..0..3..2..1..1....0..2..1..4..1..2....0..0..1..4..1..1
%e A197670 ..2..1..1..1..0..0....0..0..0..1..4..1....3..0..1..1..0..1....0..0..2..1..1..1
%e A197670 ..0..0..0..1..1..1....0..3..0..2..1..0....0..0..1..1..0..1....0..3..0..0..0..0
%K A197670 nonn
%O A197670 1,1
%A A197670 _R. H. Hardin_ Oct 17 2011