A234053 Number of (n+2)X(7+2) 0..2 arrays with no increasing sequence of length 3 horizontally, diagonally downwards or antidiagonally downwards

2055997586633, 18290072795884688, 156985597510757236203, 1337361544736313427651663, 11355805304853313848742607153, 96335863060396904192311448752837, 816981736507918614709780886907889624

Offset

1,1

Comments

Column 7 of A234054

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

Crossrefs

Sequence in context: A274808 A272518 A246233 * A335805 A032756 A234073

Adjacent sequences: A234050 A234051 A234052 * A234054 A234055 A234056

Keyword

nonn

Author

R. H. Hardin, Dec 19 2013

Status

approved