A205232 Number of (n+1)X6 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero

17010, 1707082, 221519116, 26740726836, 3156944585806, 315651250338121, 28822134156853594, 2305012794034616115, 169242457813735130939, 11278635989796761411020, 700226461876038160978441

Offset

1,1

Comments

Column 5 of A205235

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

Some solutions for n=4
..1..1..1..1..0..2....0..1..1..1..2..2....2..1..0..2..1..2....1..2..2..1..1..0
..0..1..1..1..2..1....1..1..0..2..0..2....2..0..2..1..2..1....0..1..0..1..1..2
..2..1..2..1..1..1....0..1..1..1..2..2....2..1..0..2..1..2....2..2..1..2..2..1
..0..2..0..2..2..1....1..1..1..2..0..2....0..1..2..1..2..2....0..2..0..2..0..2
..2..0..2..2..0..2....0..1..1..2..1..2....2..1..2..0..1..2....2..1..2..0..1..2

Crossrefs

Sequence in context: A235978 A326808 A300151 * A265972 A265927 A252647

Adjacent sequences: A205229 A205230 A205231 * A205233 A205234 A205235

Keyword

nonn

Author

R. H. Hardin Jan 24 2012

Status

approved