A266107 Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.

1, 715, 16428, 145274, 3899732, 192212829, 6206090116, 152827600335, 4549421529660, 155911464809823, 4886310110586327, 144366563589225015, 4437049095870031448, 139852556937264083906, 4337839455375825257187

Offset

1,2

Comments

Row 7 of A266101.

Links

R. H. Hardin, Table of n, a(n) for n = 1..40

Example

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

Crossrefs

Cf. A266101.

Sequence in context: A154042 A027809 A222912 * A030537 A140919 A208352

Adjacent sequences: A266104 A266105 A266106 * A266108 A266109 A266110

Keyword

nonn

Author

R. H. Hardin, Dec 21 2015

Status

approved