A265464 Number of nX6 0..n+6-2 arrays with upper left zero and lower right n+6-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.

29, 6221, 1630672, 593770274, 176223025171, 49094408347776, 15984824483462062, 5061676810415781351, 1503116899340714064889, 468413834308033595967513, 148642613025573311878074113, 45805757997648999357622452961

Offset

1,1

Comments

Column 6 of A265466.

Links

R. H. Hardin, Table of n, a(n) for n = 1..110

Example

Some solutions for n=2
..0..1..3..4..2..4....0..2..4..3..4..3....0..2..1..3..1..3....0..2..3..4..2..3
..3..4..3..4..5..6....4..3..2..3..5..6....3..2..4..3..5..6....3..1..2..4..5..6

Crossrefs

Cf. A265466.

Sequence in context: A260844 A267955 A267909 * A103656 A201489 A028459

Adjacent sequences: A265461 A265462 A265463 * A265465 A265466 A265467

Keyword

nonn

Author

R. H. Hardin, Dec 09 2015

Status

approved