A233702 Number of (n+2)X(2+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards

7442986, 1062275284, 144297443044, 19467107789537, 2609997970924906, 349509905164819640, 46766203338147707533, 6256380820427911740163, 836891438568071386347572, 111944533657293884018452690

Offset

1,1

Comments

Column 2 of A233705

Links

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

Example

Some solutions for n=1
..0..0..2..1....0..1..0..0....0..1..1..1....0..1..0..1....0..0..1..0
..0..0..1..1....1..0..0..0....1..1..1..2....1..3..3..0....0..3..0..1
..2..0..0..1....1..2..2..0....1..2..1..2....0..0..3..1....1..1..2..0

Crossrefs

Sequence in context: A302135 A104921 A202721 * A233707 A172547 A172599

Adjacent sequences: A233699 A233700 A233701 * A233703 A233704 A233705

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved