A233608 Number of (6+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

83451469774, 248776920079071, 752211767721347638, 2283486525774040837846, 6931225022478476739094425, 21035300720988185135892977193, 63838038364605732495536034257283, 193736916216734490842722213331617283

Offset

1,1

Comments

Row 6 of A233602

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

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

Crossrefs

Sequence in context: A172611 A172716 A209598 * A115538 A283074 A233600

Adjacent sequences: A233605 A233606 A233607 * A233609 A233610 A233611

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved