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A181013 Number of nX(n+2) binary matrices with rows and columns each in strictly increasing order as binary numbers and every 0 adjacent to a 1 and every 1 adjacent to a 0 0
0, 0, 0, 0, 0, 6, 168, 5729, 425290, 66925648, 24963075674, 23635084462403, 59754398931781339 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Superdiagonal 2 of A181011

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

All solutions for 6X8

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

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

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

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

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

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

...

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

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

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

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

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

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

CROSSREFS

Sequence in context: A104729 A106661 A322708 * A003720 A306837 A002884

Adjacent sequences:  A181010 A181011 A181012 * A181014 A181015 A181016

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 30 2010

STATUS

approved

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Last modified July 2 16:47 EDT 2020. Contains 335404 sequences. (Running on oeis4.)