A212725 Number of 0..2 arrays of length n+7 with sum less than 8 in any length 8 subsequence (=less than 50% duty cycle).

2727, 6681, 16878, 43050, 109995, 280255, 709626, 1780062, 4409127, 10965130, 27408735, 68729661, 172613504, 433687965, 1089178972, 2732863735, 6849615759, 17159775343, 42994448177, 107761756345, 270179147077, 677511074112

Offset

1,1

Comments

Column 4 of A212729.

Links

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

Example

Some solutions for n=3
..1....2....0....1....2....2....0....1....0....0....1....1....1....0....0....0
..1....0....1....1....1....1....0....0....1....2....2....1....0....0....2....0
..2....0....1....0....0....0....0....0....2....1....0....0....2....1....0....2
..1....0....0....1....0....0....2....0....0....1....1....0....0....2....1....1
..1....1....2....0....1....0....0....2....2....2....2....0....0....1....0....2
..0....0....0....0....1....2....0....2....0....0....0....2....0....1....2....1
..1....0....1....1....2....0....1....0....0....0....1....0....1....0....0....0
..0....2....0....0....0....1....0....0....0....0....0....1....0....2....0....1
..0....1....2....0....1....1....0....1....0....1....0....1....0....0....0....0
..1....1....1....0....1....2....1....2....2....0....2....0....1....0....2....0

Crossrefs

Cf. A212729.

Sequence in context: A167836 A290644 A231289 * A031608 A350047 A043579

Adjacent sequences: A212722 A212723 A212724 * A212726 A212727 A212728

Keyword

nonn

Author

R. H. Hardin, May 25 2012

Status

approved