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A266075 Number of n X n integer arrays with each element equal to the number of horizontal and vertical neighbors differing from itself by exactly one. 0
1, 1, 4, 5, 29, 78, 466, 3907, 52773, 925875, 25789942 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Diagonal of A266081.

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

All solutions for n=4

..0..2..3..2....0..0..0..0....0..0..0..0....2..3..2..0....0..0..0..0

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

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

..0..0..0..0....2..3..2..0....0..0..0..0....0..0..0..0....0..2..3..2

CROSSREFS

Cf. A266081.

Sequence in context: A092659 A002352 A042647 * A041273 A256623 A047169

Adjacent sequences:  A266072 A266073 A266074 * A266076 A266077 A266078

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

STATUS

approved

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Last modified July 30 07:49 EDT 2021. Contains 346348 sequences. (Running on oeis4.)