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A265986 Number of n X n integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself. 0
1, 1, 6, 2, 1, 5, 422, 243, 299, 1712, 91080, 155636, 749259, 5409278, 253679426, 2921924313, 9771922764942 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Diagonal of A265991.

LINKS

Table of n, a(n) for n=1..17.

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A265991.

Sequence in context: A039508 A324569 A224518 * A334942 A217909 A334943

Adjacent sequences:  A265983 A265984 A265985 * A265987 A265988 A265989

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 19 2015

STATUS

approved

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Last modified September 24 22:46 EDT 2021. Contains 347651 sequences. (Running on oeis4.)