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A207757 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically 1
2, 16, 82, 663, 6552, 56651, 887114, 17141340, 265932767, 7838599272, 322656587622, 9334787856534, 545237703029106, 50069011902134767, 2724265960028933880, 333854434181630056441, 70233064417444890074531 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207762

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207482 A207880 A207263 * A283951 A207340 A207768

Adjacent sequences:  A207754 A207755 A207756 * A207758 A207759 A207760

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 19 2012

STATUS

approved

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Last modified December 3 00:59 EST 2021. Contains 349445 sequences. (Running on oeis4.)