A233852 Number of (7+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards

6250547858112512, 524806929418457507809, 46055875906826738439045120, 4047676685721201279507422679040, 355538673014592310495082456817911552, 31231702526811449810929827386225614540889

Offset

1,1

Comments

Row 7 of A233845

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..0....0..0..1....0..0..1....0..0..0....0..0..1....0..0..1....0..0..1
..1..3..1....1..1..1....1..1..0....0..0..1....1..2..1....0..0..1....0..1..0
..3..0..3....2..3..3....0..2..0....2..3..2....1..2..1....2..3..1....3..2..1
..0..2..0....1..1..3....1..1..2....3..2..2....0..1..0....1..1..0....2..1..2

Crossrefs

Sequence in context: A173533 A358546 A260751 * A011529 A136607 A257140

Adjacent sequences: A233849 A233850 A233851 * A233853 A233854 A233855

Keyword

nonn

Author

R. H. Hardin, Dec 16 2013

Status

approved