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A207362 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically. 0
2, 16, 90, 784, 5856, 42849, 353808, 2792241, 21195317, 182223001, 1372615690, 11550015841, 91115397450, 745461286801, 5965914998428, 49005684164836, 389634565985060, 3219980044337424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207368.

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A207368.

Sequence in context: A207164 A208113 A207448 * A208008 A208550 A214824

Adjacent sequences: A207359 A207360 A207361 * A207363 A207364 A207365

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 17 2012

STATUS

approved

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Last modified January 31 12:18 EST 2023. Contains 359971 sequences. (Running on oeis4.)