%I #5 Mar 31 2012 12:36:09
%S 3139,79259,1342083,17048731,234213387
%N Number of (n+2)X(n+2) 0..2 arrays with each 3X3 subblock having sum 9
%C Diagonal of A187645
%e Some solutions for 4X4
%e ..0..2..0..1....1..1..1..0....1..2..1..0....1..2..1..1....0..1..2..0
%e ..1..0..0..0....1..1..0..1....1..1..0..0....1..0..0..2....2..0..0..1
%e ..2..2..2..2....0..2..2..1....0..1..2..2....2..2..0..1....1..1..2..2
%e ..0..0..2..1....1..1..1..0....1..2..1..0....1..2..1..1....1..0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 12 2011
