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A207518 Number of nX7 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1
31, 961, 6115, 68807, 600283, 5849409, 54373655, 516879019, 4866171581, 46008055407, 434073335621, 4098491207569, 38682074952657, 365164477339623, 3447077980972367, 32541367521606267, 307192500866436479 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A207519

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207418 A223393 A207390 * A207067 A207122 A207247

Adjacent sequences:  A207515 A207516 A207517 * A207519 A207520 A207521

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified July 6 04:31 EDT 2022. Contains 355108 sequences. (Running on oeis4.)