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A207698 Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically 1
25, 625, 1250, 2500, 10000, 40000, 145200, 527076, 2056032, 8020224, 29854944, 111133764, 429565416, 1660399504, 6232977072, 23397985296, 90031551120, 346426416400, 1306080208880, 4924120769296, 18891767424072, 72479716304004 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A207693

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A209222 A207691 A207926 * A207594 A207513 A207687

Adjacent sequences:  A207695 A207696 A207697 * A207699 A207700 A207701

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 19 2012

STATUS

approved

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Last modified September 17 23:07 EDT 2021. Contains 347489 sequences. (Running on oeis4.)