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A207773 Number of nX7 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically 1
42, 1764, 8928, 43260, 240346, 1246206, 6513576, 35632160, 198768426, 1120451746, 6383202712, 36626389034, 211006949114, 1219147066568, 7059475772964, 40937679494772, 237631015514224, 1380398824589554, 8023019135887764 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A207774

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A208839 A208687 A207351 * A207900 A207660 A207452

Adjacent sequences:  A207770 A207771 A207772 * A207774 A207775 A207776

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 20 2012

STATUS

approved

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Last modified December 5 17:28 EST 2021. Contains 349557 sequences. (Running on oeis4.)