A233494 Number of (n+2) X (5+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards.

4735554885, 6940835448966, 10115417763803313, 14736417017405018184, 21465796875243969838158, 31268023473905931187253907, 45546338617701276241497828114, 66344739833820312669512816268111

Offset

1,1

Comments

Column 5 of A233497.

Links

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

Example

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

Crossrefs

Sequence in context: A128172 A050259 A249972 * A175568 A224472 A015384

Adjacent sequences: A233491 A233492 A233493 * A233495 A233496 A233497

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved