A233495 Number of (n+2)X(6+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards.

108935413524, 442240878862773, 1781944328309674995, 7176184625255626170045, 28893821790971432538593721, 116334766873906705110905737848, 468395889308102675585857738604085, 1885890851797313637735523862961749985

Offset

1,1

Comments

Column 6 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
..0..0..0..0..0..0..0..0....0..0..0..0..0..2..2..2....0..0..0..0..0..2..0..2
..2..0..2..1..0..0..0..2....0..2..0..1..0..2..1..0....2..2..0..1..1..1..1..0

Crossrefs

Sequence in context: A221286 A074337 A072143 * A396361 A233616 A095427

Adjacent sequences: A233492 A233493 A233494 * A233496 A233497 A233498

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved