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A207853 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1
2, 16, 102, 1369, 44121, 2934369, 298294290, 56804048896, 22612514662790, 17183745725983369, 23510773704878179041, 60748271137827940655041, 304386527035085508883292036, 2891218911926091087027201634564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207858

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207117 A208415 A207945 * A208022 A207803 A059204

Adjacent sequences:  A207850 A207851 A207852 * A207854 A207855 A207856

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 21 2012

STATUS

approved

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Last modified July 25 10:07 EDT 2021. Contains 346289 sequences. (Running on oeis4.)