A233501 Number of (4+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards

265993633, 127934319483, 62127117326151, 30258000792128359, 14736417017405018184, 7176184625255626170045, 3494520906921840428076304, 1701700358463319422108492387, 828661259639311989857386140735

Offset

1,1

Comments

Row 4 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..0..0....0..0..0
..0..0..2....0..2..1....0..0..0....0..1..0....0..2..1....0..2..1....0..2..0
..1..1..1....0..0..1....2..2..0....1..0..2....2..1..1....2..1..0....0..0..0
..1..2..1....2..2..1....1..2..0....2..2..0....2..1..0....2..1..0....0..0..0
..1..2..2....1..0..2....1..1..2....1..2..2....2..1..1....0..0..0....0..1..0

Crossrefs

Sequence in context: A329464 A332314 A125576 * A295477 A358484 A011578

Adjacent sequences: A233498 A233499 A233500 * A233502 A233503 A233504

Keyword

nonn

Author

R. H. Hardin, Dec 11 2013

Status

approved