A233707 Number of (2+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards

7461298, 1062275284, 153005653333, 22080932709668, 3177351078952806, 457215707043324925, 65761185809057053136, 9458740008014999202030, 1360386895132440641594475, 195656814538501836517681346

Offset

1,1

Comments

Row 2 of A233705

Links

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

Example

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

Crossrefs

Sequence in context: A202721 A375418 A233702 * A172547 A172599 A172705

Adjacent sequences: A233704 A233705 A233706 * A233708 A233709 A233710

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved