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A204739 Number of (n+1)X8 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero 1
511, 5219, 50177, 476919, 4484324, 41716355, 384523522, 3504247804, 31566721277, 280920331934, 2471233351768, 21510581598211, 185527816735040, 1588088987381607, 13511723296065256, 114430286873282233 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A204740

LINKS

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

EXAMPLE

Some solutions for n=4

..1..0..1..0..1..1..1..1....1..0..1..1..1..1..1..0....0..1..0..1..0..1..0..1

..1..1..1..1..0..1..1..1....0..1..0..1..0..1..0..1....1..1..1..1..1..1..1..1

..0..1..0..1..1..1..1..1....1..0..1..1..1..1..1..1....0..1..0..1..0..1..0..1

..1..0..1..1..0..1..1..1....0..1..1..0..1..0..1..0....1..0..1..0..1..0..1..1

..1..1..0..1..1..1..1..1....1..1..0..1..1..1..1..1....1..1..1..1..0..1..0..1

CROSSREFS

Sequence in context: A031899 A143036 A160361 * A075948 A011559 A160953

Adjacent sequences:  A204736 A204737 A204738 * A204740 A204741 A204742

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 18 2012

STATUS

approved

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Last modified September 20 21:03 EDT 2019. Contains 327247 sequences. (Running on oeis4.)