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A268122 Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north or west neighbors modulo 6 and the upper left element equal to 0. 0
1, 2, 5, 15, 67, 761, 24745, 726627, 15303976, 251565608, 3466082679, 42227611356, 474756482065, 5136476071361 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A268115.

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

CROSSREFS

Cf. A268115.

Sequence in context: A268123 A158079 A090091 * A133645 A090130 A090140

Adjacent sequences:  A268119 A268120 A268121 * A268123 A268124 A268125

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2016

STATUS

approved

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Last modified May 24 00:38 EDT 2019. Contains 323528 sequences. (Running on oeis4.)