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A208282 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically 1
2, 16, 102, 984, 9900, 119580, 1604862, 24229696, 403795242, 7388858420, 147219127000, 3175214941800, 73720244775658, 1833809960513104, 48667824127404150, 1372862920890984032, 41025768742532649684 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A208287

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207248 A208033 A208159 * A207236 A207955 A207494

Adjacent sequences:  A208279 A208280 A208281 * A208283 A208284 A208285

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 25 2012

STATUS

approved

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Last modified October 24 02:02 EDT 2021. Contains 348217 sequences. (Running on oeis4.)