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A275564 Number of nX7 0..2 arrays with no element equal to any value at offset (-2,0) (-1,2) or (0,-2) and new values introduced in order 0..2. 1
48, 2592, 3552, 23712, 138600, 867456, 5360184, 33275880, 206892990, 1286374716, 7998368250, 49754459556, 309431155980, 1924683955344, 11971565665080, 74462297454048, 463161757751784, 2880875453047152, 17919172630925406 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A275565.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..1..1..2..2..1..1. .0..0..1..1..0..0..2. .0..1..2..0..0..2..1

..2..0..1..2..2..0..0. .0..0..2..2..0..0..2. .0..1..1..0..2..2..0

..2..0..0..1..1..2..0. .1..1..2..2..1..1..0. .2..2..0..1..1..0..2

..1..2..0..0..1..1..2. .1..1..0..0..2..2..1. .1..0..2..2..0..1..2

CROSSREFS

Cf. A275565.

Sequence in context: A042105 A206046 A079240 * A275089 A235903 A208442

Adjacent sequences:  A275561 A275562 A275563 * A275565 A275566 A275567

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 01 2016

STATUS

approved

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Last modified November 20 17:09 EST 2019. Contains 329337 sequences. (Running on oeis4.)