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A118086 Number of ways 3/2 is a product of n superparticular ratios, without regard to order. A superparticular ratio is a ratio of the form m/(m-1). 1
1, 2, 14, 229, 9393, 1474291 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

The computations were made using Maple and a program of David Canright. The sequence relates to music theory, as 3/2 is the interval of a fifth in music and the sequence enumerates various ways of subdividing a fifth using superparticular intervals.

CROSSREFS

Cf. A085098, A118087.

Sequence in context: A197210 A153668 A105749 * A048163 A093548 A052215

Adjacent sequences:  A118083 A118084 A118085 * A118087 A118088 A118089

KEYWORD

hard,more,nonn

AUTHOR

Gene Ward Smith (genewardsmith(AT)gmail.com), Apr 14 2006

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.