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%I #5 Dec 18 2015 18:18:50
%S 2,2,16,18,154,282,1976,5706,42470,147092,1196210,5215010,48697758,
%T 245354078,2815029508,16378986516
%N Number of n X n 0..2 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 3
%C Diagonal of A240039
%e Some solutions for n=3
%e ..2..1..1....1..2..1....2..1..2....1..2..2....2..1..2....1..2..2....1..2..1
%e ..1..0..0....2..0..0....1..0..0....2..0..1....1..0..0....2..0..0....2..0..0
%e ..2..0..0....1..0..0....2..0..0....1..0..2....1..0..0....1..0..0....1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 31 2014