A250455 Number of (n+2) X (1+2) 0..2 arrays with nondecreasing maximum of every three consecutive values in every row and column.

19683, 373248, 6859000, 120553784, 1990865512, 32248529487, 512192024001, 7998800059999, 123781481019253, 1900633644603000, 29012551351120576, 441121225835112256, 6686195501981749312, 101112177444306318837

Offset

1,1

Comments

Column 1 of A250459.

Links

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

R. H. Hardin, Empirical recurrence of order 83

Formula

Empirical recurrence of order 83 (see link above).

Example

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

Crossrefs

Cf. A250459.

Sequence in context: A186625 A186622 A250459 * A016761 A250593 A016773

Adjacent sequences: A250452 A250453 A250454 * A250456 A250457 A250458

Keyword

nonn

Author

R. H. Hardin, Nov 23 2014

Status

approved