A266023 Number of nX6 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors exactly one smaller than itself.

16, 259, 1045, 19688, 336357, 4285397, 63460724, 950319651, 13831198142, 203362718849, 2996519345158, 44069974577249, 648396325752902, 9541613955300209, 140380983573276762, 2065580574184245251

Offset

1,1

Comments

Column 6 of A266025.

Links

R. H. Hardin, Table of n, a(n) for n = 1..122

Example

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

Crossrefs

Cf. A266025.

Sequence in context: A041482 A320362 A220742 * A223623 A264532 A240368

Adjacent sequences: A266020 A266021 A266022 * A266024 A266025 A266026

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved