A207350 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 1 1 vertically

26, 676, 2812, 11230, 41112, 128292, 388134, 1134282, 3225374, 9002616, 24769666, 67483434, 182349814, 489763956, 1309361216, 3487680090, 9264546642, 24556015282, 64977975688, 171714994844, 453323511688, 1195826552876

Offset

1,1

Comments

Row 6 of A207346

Links

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

Example

Some solutions for n=4
..1..0..1..0....0..1..0..1....1..0..0..1....0..1..0..1....0..1..0..1
..0..1..0..0....1..0..1..0....0..1..0..0....1..1..1..0....1..0..0..1
..0..1..0..1....1..1..0..1....1..0..1..0....0..0..1..0....1..1..1..0
..1..0..1..0....0..1..0..1....1..1..1..1....0..1..0..1....0..1..0..0
..0..1..0..1....0..0..1..0....0..1..0..1....1..1..0..1....1..0..0..1
..1..0..0..1....1..0..1..0....0..0..1..0....1..0..1..0....1..1..1..0

Crossrefs

Sequence in context: A207849 A208838 A208686 * A207772 A207899 A207659

Adjacent sequences: A207347 A207348 A207349 * A207351 A207352 A207353

Keyword

nonn

Author

R. H. Hardin Feb 17 2012

Status

approved