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A266095 Number of nXn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself. 0
1, 5, 64, 929, 53442, 12401485, 6206090116, 5955851105844, 17910530164706984, 181493083347714402782, 4372527304675102033719740, 234910588564744761536499928490 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A266101.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A266101.

Sequence in context: A178295 A054937 A302993 * A255523 A193222 A274265

Adjacent sequences:  A266092 A266093 A266094 * A266096 A266097 A266098

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 21 2015

STATUS

approved

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Last modified December 11 04:29 EST 2018. Contains 318049 sequences. (Running on oeis4.)