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A205056 Number of (n+1)X(n+1) 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing 0
81, 7572, 4502701, 14708332687, 379440722213179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A205063

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=4

..2..1..0..0..2....2..0..1..2..0....2..1..0..2..1....1..2..1..0..1

..0..0..0..2..1....2..0..2..0..2....2..0..2..0..2....0..2..0..2..0

..1..1..1..2..0....0..0..2..2..2....1..1..0..2..0....2..2..2..2..2

..1..2..2..1..1....1..2..0..0..1....0..2..2..0..2....2..2..2..2..2

..1..1..2..1..2....2..1..1..0..1....1..2..0..1..2....2..2..2..2..2

CROSSREFS

Sequence in context: A185770 A222441 A206216 * A186132 A206504 A046172

Adjacent sequences:  A205053 A205054 A205055 * A205057 A205058 A205059

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 21 2012

STATUS

approved

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Last modified January 17 17:47 EST 2022. Contains 350402 sequences. (Running on oeis4.)