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A195977 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.

%I A195977 #7 Jun 02 2025 04:16:46
%S A195977 25,139,240,455,1072,2718,5637,12823,30486,72042,166884,390514,917562,
%T A195977 2167323,5114140,12071815,28523614,67538866,159964100,378996636,
%U A195977 898240293,2130429190,5054033816,11993264778,28464315995,67574829560
%N A195977 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.
%C A195977 Every 0 is next to 0 2's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 3's, every 4 is next to 4 4's
%C A195977 Column 7 of A195978
%H A195977 R. H. Hardin, <a href="/A195977/b195977.txt">Table of n, a(n) for n = 1..200</a>
%e A195977 Some solutions for n=4
%e A195977 ..1..0..1..1..0..0..1....0..0..1..1..0..0..1....1..0..0..0..0..1..2
%e A195977 ..2..1..2..2..1..1..1....0..0..1..1..0..0..1....2..1..1..1..1..1..1
%e A195977 ..2..1..2..2..1..1..0....1..1..1..1..1..1..1....2..1..1..1..1..0..0
%e A195977 ..1..0..1..1..0..1..1....2..1..0..0..1..1..0....1..0..0..0..1..1..1
%K A195977 nonn
%O A195977 1,1
%A A195977 _R. H. Hardin_ Sep 25 2011