%I
%S 2,4,26,346,7514,640643,104619164,49892724623
%N Number of n X n 0..3 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 or one plus the sum of the elements antidiagonally to its northeast, modulo 4
%C Diagonal of A240046
%e Some solutions for n=3
%e ..2..3..2....2..3..2....2..3..2....3..2..2....2..3..3....2..3..3....2..3..2
%e ..1..0..0....3..0..0....1..0..0....1..0..3....3..1..2....3..1..2....3..0..0
%e ..1..2..0....2..0..3....1..0..3....2..3..2....3..2..2....3..1..2....2..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 31 2014
