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A264256 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change 0,1 0,-1 0,2 1,0 or -1,0. 1
2281, 181644, 32417000, 3975678008, 588617879781, 78959520889200, 11166848274154145, 1534547377654966752, 214185316674167629557, 29640776473731026096764, 4120920689916250941333009 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A264257.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..61

EXAMPLE

Some solutions for n=2

..1..2..3..4..5..6..7.15....8..2..1.11..5.13.14.15....8..0..3..1..2.13..7..6

..0.17.18..9.10.11.12.14....0.10.18..3..4.12..6..7....9.10.11.12..4..5.15.14

..8.16.19.20.21.13.23.22...17..9.16.20.21.19.23.22...17.18.16.20.21.19.23.22

CROSSREFS

Cf. A264257.

Sequence in context: A166222 A203725 A247401 * A236700 A268892 A206663

Adjacent sequences:  A264253 A264254 A264255 * A264257 A264258 A264259

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 09 2015

STATUS

approved

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Last modified May 9 11:58 EDT 2021. Contains 343740 sequences. (Running on oeis4.)