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%I #5 Aug 12 2016 06:54:16
%S 1,3,17,203,7672,201362,3562990,52241496,855234512,19809675462
%N Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any north or southwest neighbors modulo 7 and the upper left element equal to 0.
%C Row 7 of A267655.
%e Some solutions for n=5
%e ..0..2..3..4..5....0..1..2..4..5....0..2..3..4..5....0..2..3..4..5
%e ..1..2..4..5..6....0..2..3..4..5....1..2..3..5..6....1..2..4..5..6
%e ..2..3..5..6..0....1..2..3..5..6....2..2..4..6..0....2..3..4..6..0
%e ..2..4..5..6..0....2..3..4..6..0....2..3..5..6..0....2..3..5..6..1
%e ..3..4..6..0..1....3..4..5..0..1....3..4..5..6..1....3..4..6..0..1
%e ..3..5..0..1..2....3..5..6..0..1....3..4..6..0..1....3..5..6..0..1
%e ..4..6..1..1..3....4..6..6..1..2....4..5..0..1..1....4..5..0..1..2
%Y Cf. A267655.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 19 2016
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