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A212469 Number of 0..3 arrays of length n+11 with sum no more than 18 in any length 12 subsequence (=50% duty cycle) 1
9240426, 32644314, 118029501, 430682205, 1578372444, 5795798788, 21292987433, 78186208521, 286703599009, 1049119428341, 3828209603876, 13919545400124, 50392127733527, 182633247168566, 663071942478215, 2410713609407184 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A212471

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..37

EXAMPLE

Some solutions for n=3

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0

..2....0....0....0....2....0....0....2....0....0....0....2....0....2....0....0

..2....0....0....0....0....0....2....2....2....2....2....0....2....0....0....2

..0....0....2....0....2....0....2....0....0....2....2....2....0....0....0....0

..0....0....0....2....2....0....2....0....2....0....0....2....2....2....2....0

..0....0....0....2....2....0....0....0....2....2....2....2....2....2....2....2

..0....0....2....0....2....0....2....2....0....2....0....0....0....2....0....2

..2....2....0....0....2....0....0....0....2....2....2....2....2....0....2....2

..3....0....3....3....0....2....2....2....1....2....1....2....0....1....0....1

..1....0....0....2....1....0....2....3....3....3....3....1....3....2....3....0

..0....2....1....3....2....0....2....1....0....0....3....2....0....3....3....3

..1....1....1....0....1....2....0....1....2....1....1....3....0....0....0....2

..0....2....2....1....2....0....2....3....3....1....0....0....1....3....3....3

CROSSREFS

Sequence in context: A245746 A206098 A105175 * A251280 A234395 A204510

Adjacent sequences:  A212466 A212467 A212468 * A212470 A212471 A212472

KEYWORD

nonn

AUTHOR

R. H. Hardin May 17 2012

STATUS

approved

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Last modified May 24 20:53 EDT 2019. Contains 323534 sequences. (Running on oeis4.)