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A267746 Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any west or northeast neighbors modulo 7 and the upper left element equal to 0. 0

%I

%S 720,8,157,1008,13856,211044,3562990,62745587,1149981951

%N Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any west or northeast neighbors modulo 7 and the upper left element equal to 0.

%C Row 7 of A267742.

%e Some solutions for n=4

%e ..0..1..1..1....0..0..1..2....0..0..1..2....0..1..2..2....0..1..1..2

%e ..2..2..2..3....1..2..3..3....1..2..3..4....1..2..3..3....1..2..2..3

%e ..3..3..4..4....3..3..4..4....3..4..5..5....2..3..4..4....2..3..3..4

%e ..3..4..4..5....4..4..5..5....5..6..6..0....3..4..5..5....3..4..4..4

%e ..5..5..6..6....5..5..6..6....6..0..1..2....4..5..6..6....5..5..5..5

%e ..5..6..6..0....6..6..0..1....1..2..3..4....5..6..6..0....6..6..6..0

%e ..0..0..1..2....0..1..2..2....3..4..5..6....0..0..1..1....6..0..0..1

%Y Cf. A267742.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 20 2016

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Last modified September 23 02:26 EDT 2021. Contains 347609 sequences. (Running on oeis4.)