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%I #5 Dec 20 2013 07:26:02
%S 46,2210,411712,305867942,906740091154,10766110422202828,
%T 513096321262694789718,98329465854339796818641798,
%U 75883578239965077307319666003040
%N Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1
%C Diagonal of A234161
%H R. H. Hardin, <a href="/A234153/b234153.txt">Table of n, a(n) for n = 1..11</a>
%e Some solutions for n=2
%e ..2..2..2....3..2..2....3..3..2....1..0..1....3..2..3....1..1..1....3..2..3
%e ..2..2..3....2..2..1....2..2..2....0..1..1....2..2..2....1..0..1....2..3..2
%e ..2..3..3....3..2..1....1..1..2....1..0..1....1..2..1....0..1..0....2..3..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 20 2013