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A206891 Number of 5Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically 1
20, 400, 4792, 51800, 607043, 7354488, 88342972, 1052865902, 12550021410, 149829237791, 1789228772267, 21361035307546, 254996432939040, 3044109171852296, 36341089959264948, 433845306322806048 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A206889

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A188519 A189260 A224174 * A188759 A223866 A207091

Adjacent sequences:  A206888 A206889 A206890 * A206892 A206893 A206894

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 13 2012

STATUS

approved

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Last modified January 25 14:14 EST 2022. Contains 350572 sequences. (Running on oeis4.)