A233609 Number of (7+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

1853608731449, 14676155317362609, 118131715113190354345, 955374780755516442029392, 7725532264282950863151651388, 62458817783021082188658229035104, 504952565127306851299571097075003261

Offset

1,1

Comments

Row 7 of A233602

Links

R. H. Hardin, Table of n, a(n) for n = 1..12

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

Crossrefs

Sequence in context: A282182 A017543 A333977 * A378024 A233601 A233850

Adjacent sequences: A233606 A233607 A233608 * A233610 A233611 A233612

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved