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A267026 Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any northeast or northwest neighbors modulo 7 and the upper left element equal to 0. 0
720, 19, 147, 1015, 15171, 255437, 4893787, 100710495, 2166450939 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A267019.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

..0..4..0..3....0..3..0..4....0..3..0..4....0..3..6..3....0..0..0..0

..4..1..4..1....4..1..4..0....4..1..4..1....4..0..3..6....1..1..1..1

..1..5..1..5....1..4..1..5....2..5..1..5....0..4..0..3....2..2..2..2

..5..2..5..2....5..2..5..1....6..2..5..1....4..1..4..1....3..3..3..3

..2..6..2..6....2..5..2..6....3..6..2..5....1..5..1..5....4..4..4..4

..6..3..6..3....6..2..6..3....0..3..6..2....6..2..5..2....5..5..5..5

..3..0..4..0....3..0..3..6....4..0..3..6....2..6..2..5....6..6..6..6

CROSSREFS

Cf. A267019.

Sequence in context: A267571 A267287 A267746 * A145226 A056467 A056457

Adjacent sequences:  A267023 A267024 A267025 * A267027 A267028 A267029

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 09 2016

STATUS

approved

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Last modified September 18 01:00 EDT 2021. Contains 347496 sequences. (Running on oeis4.)