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A275559 Number of n X n 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. 0
1, 14, 126, 1176, 13104, 221184, 5360184, 188294424, 9859695270, 753451571736, 86203713522030, 14475271269137334 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A275565.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A275565.

Sequence in context: A088625 A073393 A020918 * A222477 A041368 A026882

Adjacent sequences:  A275556 A275557 A275558 * A275560 A275561 A275562

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 01 2016

STATUS

approved

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Last modified June 16 04:56 EDT 2021. Contains 345056 sequences. (Running on oeis4.)