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A207784 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically 1
25, 625, 2815, 12567, 46199, 185613, 786907, 3121285, 12547290, 51431686, 207462822, 837211531, 3399092159, 13752531706, 55605190507, 225211225477, 911554639912, 3688266309172, 14929725196351, 60428546476595 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A207785

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207727 A207912 A208424 * A207597 A207023 A208116

Adjacent sequences:  A207781 A207782 A207783 * A207785 A207786 A207787

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 20 2012

STATUS

approved

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Last modified August 12 04:46 EDT 2022. Contains 356067 sequences. (Running on oeis4.)