A233504 Number of (7+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards

4179418541288, 42073567268258250, 430460043429459971151, 4427856941758752650124295, 45546338617701276241497828114, 468395889308102675585857738604085, 4816818414167397900878136977065117439

Offset

1,1

Comments

Row 7 of A233497

Links

R. H. Hardin, Table of n, a(n) for n = 1..15

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

Crossrefs

Sequence in context: A172630 A186912 A288284 * A013640 A185431 A139574

Adjacent sequences: A233501 A233502 A233503 * A233505 A233506 A233507

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved