A233598 Number of (n+2)X(4+2) 0..2 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards

171455430, 73856970690, 31089670720384, 13036676136198570, 5457144376641532163, 2283486525774040837846, 955374780755516442029392, 399700509452316587377052436, 167221148903938599277866656392

Offset

1,1

Comments

Column 4 of A233602

Links

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

Example

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

Crossrefs

Sequence in context: A258956 A096536 A104331 * A187316 A306875 A251999

Adjacent sequences: A233595 A233596 A233597 * A233599 A233600 A233601

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved