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A112732 Denominators of the convergents to the continued fraction for log2(5)/4. 2
1, 2, 5, 7, 12, 19, 31, 174, 205, 789, 2572, 3361, 9294, 12655, 97879, 7647217, 15392313, 207747286, 1054128743, 2316004772, 24214176463, 74958534161, 174131244785, 3557583429861, 3731714674646, 14752727453799, 77495351943641 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

This is the fifth of 1/4-comma meantone temperament and hence of significance in music theory, as these represent equal divisions of the octave in which the circle of fifths nearly closes. The sequence is therefore closely related to A005664.

LINKS

Tonalsoft Encyclopedia, Quarter-comma meantone

Wikipedia, Quarter-comma meantone

CROSSREFS

Cf. A005664.

Sequence in context: A001060 A042343 A042691 * A042065 A041793 A029938

Adjacent sequences:  A112729 A112730 A112731 * A112733 A112734 A112735

KEYWORD

nonn

AUTHOR

Gene Ward Smith (genewardsmith(AT)gmail.com), Dec 31 2005

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Last modified February 17 16:00 EST 2012. Contains 206050 sequences.