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A205234 Number of (n+1)X8 0..2 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero 0
198325, 76088840, 48815088704, 36382087706267, 28822134156853594 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A205235

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A344943 A213817 A215996 * A345660 A249358 A290780

Adjacent sequences:  A205231 A205232 A205233 * A205235 A205236 A205237

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 24 2012

STATUS

approved

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Last modified July 24 18:34 EDT 2021. Contains 346273 sequences. (Running on oeis4.)