A047192 - OEIS

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A047192

Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-2)/2.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 8, 48, 54, 189, 210, 560, 616, 1386, 1512, 3090, 3354, 6864, 7469, 17094, 18810, 49335, 54912, 152152, 170170, 460139, 514329, 1316904

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,12

LINKS

Table of n, a(n) for n=1..34.

CROSSREFS

Sequence in context: A041106 A303732 A119453 * A342611 A270009 A033044

Adjacent sequences: A047189 A047190 A047191 * A047193 A047194 A047195

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved