A233601 Number of (n+2)X(7+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

1924641376011, 16020595216911881, 128221861876679372095, 1018837814576470768593230, 8068147654825511240437884344, 63838038364605732495536034257283, 504952565127306851299571097075003261

Offset

1,1

Comments

Column 7 of A233602

Links

R. H. Hardin, Table of n, a(n) for n = 1..43

Example

Some solutions for n=1
..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..1
..0..0..0..2..0..2..1..1..2....2..0..0..2..2..2..2..2..2

Crossrefs

Sequence in context: A333977 A233609 A378024 * A233850 A351431 A274808

Adjacent sequences: A233598 A233599 A233600 * A233602 A233603 A233604

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved