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%I #5 Aug 12 2016 06:54:01
%S 720,2,3,3,8,17,2033,279070,27767384,1883165721,86034010064,
%T 2749223521421
%N Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any west or southwest neighbors modulo 7 and the upper left element equal to 0.
%C Row 7 of A267562.
%e Some solutions for n=7
%e ..0..0..1..1..2..3..4....0..1..1..2..3..4..5....0..1..2..3..4..5..6
%e ..6..0..1..2..3..4..5....0..1..2..3..4..5..6....1..2..2..3..4..5..6
%e ..0..1..2..3..4..5..6....1..2..3..4..5..6..6....1..2..3..4..5..6..0
%e ..1..2..3..4..5..6..0....1..2..3..4..5..6..0....2..3..4..5..6..0..1
%e ..1..2..3..4..5..6..0....2..3..4..5..6..0..0....3..4..5..6..0..0..1
%e ..1..2..3..4..5..6..6....2..3..4..5..6..0..1....3..4..5..6..0..1..2
%e ..2..3..4..5..5..6..0....3..4..5..6..0..1..2....3..4..5..6..0..1..2
%Y Cf. A267562.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 17 2016