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A263665 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and with no two consecutive increases or two consecutive decreases. 1
1, 2, 4, 10, 32, 122, 544, 2770, 13102, 53324, 201822, 744369, 2681622, 9781781, 35830358, 134471953, 510679902, 1948913086, 7413069078, 28251926154, 106925701022, 405357452874, 1528103687814, 5781674554622, 21790410540302 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A263666.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=7

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

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

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

..1....1....6....5....6....5....0....2....0....2....0....6....2....0....1....6

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

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

..4....6....4....0....0....3....5....5....6....4....5....1....4....4....5....3

CROSSREFS

Cf. A263666.

Sequence in context: A263663 A176006 A263664 * A001250 A013032 A098830

Adjacent sequences:  A263662 A263663 A263664 * A263666 A263667 A263668

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2015

STATUS

approved

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Last modified June 22 20:04 EDT 2021. Contains 345388 sequences. (Running on oeis4.)