A212227 Number of 0..2 arrays of length n+5 with sum no more than 6 in any length 6 subsequence (=50% duty cycle)

435, 1113, 2902, 7596, 19834, 51440, 131950, 339564, 876777, 2267261, 5864274, 15159987, 39161060, 101136977, 261240954, 674934552, 1743897567, 4505828919, 11641402990, 30075908053, 77701600604, 200746256554, 518645274018

Offset

1,1

Comments

Column 3 of A212232

Links

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

Example

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

Crossrefs

Sequence in context: A054905 A160353 A268475 * A369153 A237302 A124043

Adjacent sequences: A212224 A212225 A212226 * A212228 A212229 A212230

Keyword

nonn

Author

R. H. Hardin May 06 2012

Status

approved