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A189434 Number of nX8 array permutations with each element not moving, or moving one space N, SW or SE 1
1, 34, 1165, 42205, 1940868, 79826592, 3467525301, 150293731826, 6540976400913, 285499775348185, 12468705796935816, 545183904690537217, 23847514960230618480, 1043490861604911009586, 45668994694128002511925 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 8 of A189435

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..50

EXAMPLE

Some solutions for 3X8

..8..9.10.11..4.13.14..7....0..1..2..3..4..5..6..7....0..1..2..3..4..5..6..7

..1..0..3..2..5.21.22..6...16.17.18.19.12.13.22.23....8..9.18.19.12.13.14.15

.16.17.18.19.20.12.15.23....9..8.11.10.20.21.15.14...16.17.11.10.20.21.22.23

CROSSREFS

Sequence in context: A264019 A009978 A041545 * A167258 A251924 A158731

Adjacent sequences:  A189431 A189432 A189433 * A189435 A189436 A189437

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 22 2011

STATUS

approved

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Last modified June 4 10:04 EDT 2020. Contains 334825 sequences. (Running on oeis4.)