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A267286 Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 6 and the upper left element equal to 0. 0

%I

%S 120,2,3,317,6240,69265,663855,12954512,466131976,13687472182,

%T 278976573772

%N Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 6 and the upper left element equal to 0.

%C Row 6 of A267278.

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A267278.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 12 2016

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Last modified June 29 15:47 EDT 2022. Contains 354913 sequences. (Running on oeis4.)