A233606 Number of (4+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

169129037, 71466955645, 30486088122553, 13036676136198570, 5574143275976092654, 2383129442012556083197, 1018837814576470768593230, 435575542162403062187818335, 186217233746963741809536982185

Offset

1,1

Comments

Row 4 of A233602

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

Crossrefs

Sequence in context: A172693 A172784 A250934 * A258956 A096536 A104331

Adjacent sequences: A233603 A233604 A233605 * A233607 A233608 A233609

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved