A250456 Number of (n+2)X(2+2) 0..2 arrays with nondecreasing maximum of every three consecutive values in every row and column

373248, 17318918, 772693886, 32602562806, 1275994883882, 48782075567391, 1821064698359512, 66622768121582144, 2411041836414244648, 86445981340311543372, 3077820289047843771294, 109070560585937699044788

Offset

1,1

Comments

Column 2 of A250459

Links

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

Example

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

Crossrefs

Sequence in context: A234792 A234382 A178288 * A043661 A206666 A296815

Adjacent sequences: A250453 A250454 A250455 * A250457 A250458 A250459

Keyword

nonn

Author

R. H. Hardin, Nov 23 2014

Status

approved