%I #5 Dec 18 2015 18:18:46
%S 1,37,5149,6363511,66287652717,5637591065064585,
%T 3953611274692252664219,22845060732287997693078487339,
%U 1087328305739985850553848837289874701,426327214385010895269748977017138080515645751
%N Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally
%C Diagonal of A232309
%e Some solutions for n=3
%e ..1..2..2....0..1..1....2..1..1....1..2..0....2..2..2....1..2..0....2..1..0
%e ..1..2..1....1..2..0....2..0..2....2..1..1....2..0..1....0..0..1....1..1..2
%e ..0..2..2....0..2..1....2..2..1....2..2..0....1..2..2....2..0..2....0..0..2
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 22 2013