A205058 Number of (n+1)X3 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing

491, 7572, 111413, 1383154, 16383311, 175923930, 1825712439, 18040920199, 174834354143, 1658203154833, 15589489658454, 145407627330028, 1352240865751568, 12547362532350341, 116355015072768773

Offset

1,1

Comments

Column 2 of A205063

Links

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

Example

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

Crossrefs

Sequence in context: A260925 A217118 A205200 * A229520 A226715 A205819

Adjacent sequences: A205055 A205056 A205057 * A205059 A205060 A205061

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved