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A207387 Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically 0
2, 16, 98, 643, 5348, 42167, 335915, 2975974, 27237128, 254712604, 2518233755, 25906520150, 274611244775, 3028044205471, 34585700854386 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207391

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A082639 A207301 A207105 * A207934 A207780 A207461

Adjacent sequences:  A207384 A207385 A207386 * A207388 A207389 A207390

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 17 2012

STATUS

approved

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Last modified January 25 07:28 EST 2020. Contains 331241 sequences. (Running on oeis4.)