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A205227
Number of (n+1)X(n+1) 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero
0
56, 2773, 640652, 586841773, 3156944585806
OFFSET
1,1
COMMENTS
Diagonal of A205235
EXAMPLE
Some solutions for n=4
..2..0..2..0..2....0..2..1..0..1....2..1..0..2..1....1..1..2..1..1
..1..1..0..1..0....1..2..0..2..1....2..0..2..0..2....2..2..0..2..2
..1..1..2..2..2....1..1..2..2..2....1..1..0..2..0....2..0..2..0..2
..0..2..2..1..2....2..2..0..2..2....0..2..2..0..2....2..2..2..2..2
..1..1..2..2..2....0..2..2..2..2....1..2..0..1..2....2..0..2..2..2
CROSSREFS
Sequence in context: A198948 A003696 A199709 * A376228 A328352 A224176
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 24 2012
STATUS
approved