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A275084 Number of n X n 0..2 arrays with no element equal to any value at offset (0,-2), (-1,-2) or (-2,-1) and new values introduced in order 0..2. 0
1, 14, 192, 3088, 87924, 5038428, 512150588, 96851464412, 34421374000200, 22305044857494304, 26793208475912331160, 59563800755983637416156, 244126929061976907515769752 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A275090.

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A275090.

Sequence in context: A198650 A198657 A055759 * A086946 A158530 A348549

Adjacent sequences: A275081 A275082 A275083 * A275085 A275086 A275087

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 16 2016

STATUS

approved

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Last modified December 6 10:23 EST 2022. Contains 358630 sequences. (Running on oeis4.)