A266022 Number of nX5 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself.

9, 99, 316, 3796, 39064, 336357, 3254726, 31035211, 292685424, 2799525337, 26595754073, 253049304865, 2411701918670, 22950798550179, 218539972439888, 2081095747834009, 19814659576096763, 188682858931600792

Offset

1,1

Comments

Column 5 of A266025.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..1..0..2..1..1....2..1..0..0..1....1..0..2..1..0....0..0..1..2..1
..1..1..2..0..1....1..2..3..2..1....2..0..1..1..1....0..2..3..2..0
..2..3..2..1..2....0..2..0..2..0....1..1..1..1..1....2..1..1..2..0
..0..0..1..2..0....1..1..1..2..1....2..2..0..2..0....1..0..2..1..1

Crossrefs

Cf. A266025.

Sequence in context: A139280 A292449 A292739 * A284691 A147829 A116274

Adjacent sequences: A266019 A266020 A266021 * A266023 A266024 A266025

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved