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%I #5 Dec 19 2013 16:57:44
%S 31,1361,231713,157630963,427196005695,4625943683805313,
%T 200376051988817866625,34754816964141969688314115,
%U 24157262935852623408023272643359,67332158893994957162261589597358347857
%N Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1
%C Diagonal of A234122
%H R. H. Hardin, <a href="/A234115/b234115.txt">Table of n, a(n) for n = 1..13</a>
%e Some solutions for n=2
%e ..2..1..2....2..1..1....1..2..1....1..1..1....2..1..2....1..1..1....1..0..1
%e ..2..1..2....1..2..1....2..1..2....0..1..0....1..2..2....1..0..1....0..0..1
%e ..2..2..1....1..2..1....2..1..2....0..0..0....2..2..1....0..0..1....1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 19 2013
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