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A198912 Number of nX6 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor 1
52, 313132, 13088156547, 769126451071174, 46891073386615240710, 2869765342757082981876352 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A198914

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions with values 0 to 7 for n=3

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

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

..0..1..4..7..6..7....0..1..5..0..6..7....0..1..0..7..3..0....0..1..4..5..6..7

CROSSREFS

Sequence in context: A070908 A198980 A198721 * A208300 A038778 A116107

Adjacent sequences:  A198909 A198910 A198911 * A198913 A198914 A198915

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 31 2011

STATUS

approved

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Last modified October 14 07:31 EDT 2019. Contains 327995 sequences. (Running on oeis4.)