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%I #5 Dec 18 2015 18:18:50
%S 1,3,13,171,7113,652346,226886115,198719581101
%N Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4
%C Diagonal of A239986
%e Some solutions for n=4
%e ..3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0....3..0..0..0
%e ..2..3..3..3....2..3..0..0....2..1..0..0....2..1..0..0....2..3..3..3
%e ..2..0..0..3....2..0..0..0....2..0..3..0....2..0..0..3....2..0..0..3
%e ..3..0..0..1....2..0..1..1....3..0..0..1....3..1..1..3....3..0..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 30 2014