A234056 Number of (2+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards

402000, 23857470, 1425517650, 85374621482, 5109216554257, 305711881527997, 18290072795884688, 1094247314313409438, 65465147970699360649, 3916554430848201277811, 234313581827486451826841

Offset

1,1

Comments

Row 2 of A234054

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A205094 A234419 A096890 * A157826 A215998 A186606

Adjacent sequences: A234053 A234054 A234055 * A234057 A234058 A234059

Keyword

nonn

Author

R. H. Hardin, Dec 19 2013

Status

approved