A183709 Number of (n+1)X9 0..3 arrays with every 2X2 subblock nonsingular

11208812712, 771732813754128, 52731638795200916256, 3608961753073209868200240, 246907689712402743573482286144, 16893652701074804322774461983910592

Offset

1,1

Comments

Column 8 of A183710

Links

R. H. Hardin, Table of n, a(n) for n = 1..7

Example

Some solutions for 3X9
..0..2..0..2..0..2..1..3..2....0..2..0..2..0..2..2..3..0
..2..0..2..0..2..0..3..1..1....2..0..2..0..2..0..3..2..3
..0..2..0..1..0..2..1..1..3....0..2..0..1..0..2..1..3..1

Crossrefs

Sequence in context: A095426 A038453 A290390 * A247312 A204780 A333131

Adjacent sequences: A183706 A183707 A183708 * A183710 A183711 A183712

Keyword

nonn

Author

R. H. Hardin Jan 06 2011

Status

approved