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A267336 Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 7 and the upper left element equal to 0. 0

%I

%S 720,0,0,0,0,0,1,46,29393,6837388,613275874,23205147788,464526211444,

%T 5767760740531,42557114596251,237454733444334

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

%C Row 7 of A267328.

%e Some solutions for n=8

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

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

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

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

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

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

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

%Y Cf. A267328.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 13 2016

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Last modified August 17 03:53 EDT 2022. Contains 356184 sequences. (Running on oeis4.)