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%I #6 Apr 17 2022 21:10:10
%S 1,11585,50848495,87523201775,133980449920831
%N Number of n X 6 0..6 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors.
%C Column 6 of A203389.
%e Some solutions for n=4
%e ..5..6..6..5..5..3....2..2..5..5..3..1....3..3..3..6..6..1....6..6..4..0..4..4
%e ..5..6..6..1..5..3....2..0..5..5..6..6....6..6..5..6..6..3....6..6..6..0..5..5
%e ..2..3..4..0..5..5....5..5..1..6..6..6....6..6..2..6..6..3....4..6..6..1..5..5
%e ..0..0..4..4..5..5....5..5..1..6..6..0....3..3..0..4..4..0....0..5..5..0..3..3
%Y Cf. A203389.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 01 2012