A266038 Number of 6Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.

1, 5959, 440405, 52086421, 40462691139, 16683384355551, 5071647592093453, 1947360153690065421, 792441110901340148579, 302147893342475874444884, 115041736614127657648036556, 44423748737977422546236576552

Offset

1,2

Comments

Row 6 of A266033.

Links

R. H. Hardin, Table of n, a(n) for n = 1..27

Example

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

Crossrefs

Cf. A266033.

Sequence in context: A028517 A289515 A186479 * A032658 A157666 A176374

Adjacent sequences: A266035 A266036 A266037 * A266039 A266040 A266041

Keyword

nonn

Author

R. H. Hardin, Dec 20 2015

Status

approved