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%I #5 Mar 31 2012 12:36:29
%S 1,73,1537,30940,706153,15034832,322715244,6984694296,150562726618,
%T 3245505223710,70004837612015,1509763068769076,32557618945328577,
%U 702121520920633674,15141824337674655027,326544294704293876446
%N Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,0 for x=0,1,2,3,4
%C Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 0's
%C Column 7 of A197217
%H R. H. Hardin, <a href="/A197216/b197216.txt">Table of n, a(n) for n = 1..188</a>
%e Some solutions for n=4
%e ..0..0..1..0..0..1..0....0..2..2..1..3..1..0....0..0..0..0..0..0..0
%e ..1..1..3..1..1..3..1....0..2..2..0..1..0..1....2..2..0..1..3..1..0
%e ..3..1..0..0..1..0..0....0..1..3..1..1..1..3....2..2..1..0..1..0..0
%e ..1..0..0..1..3..1..0....0..0..1..1..3..1..1....0..1..3..1..0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Oct 11 2011
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