A233502 Number of (5+2) X (n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards.

6662227346, 8830686982464, 11844001767009636, 15945021790711870267, 21465796875243969838158, 28893821790971432538593721, 38891474395238135873952939275, 52348636088492787343552168148472

Offset

1,1

Comments

Row 5 of A233497.

Links

R. H. Hardin, Table of n, a(n) for n = 1..58

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....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..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..0..2....0..0..2....0..2..1....0..2..0....0..0..0....0..1..0
..1..2..0....2..2..2....2..0..0....0..2..1....2..0..1....2..0..2....1..1..2
..0..0..1....1..1..2....0..1..1....2..2..1....0..1..1....2..1..0....0..0..0
..1..2..2....1..0..1....1..0..2....2..1..0....2..2..2....1..0..1....0..2..0

Crossrefs

Cf. A233497.

Sequence in context: A268845 A161160 A242829 * A113640 A233623 A199633

Adjacent sequences: A233499 A233500 A233501 * A233503 A233504 A233505

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved