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 A221363 Decimal expansion of the Pythagorean comma. 4
 1, 0, 1, 3, 6, 4, 3, 2, 6, 4, 7, 7, 0, 5, 0, 7, 8, 1, 2, 5 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS In musical tuning, the Pythagorean comma is 12 fifths / 7 octaves = (3/2)^12 / 2^7. REFERENCES Larry Baggett, In the Dark on the Sunny Side: A Memoir of an Out-of-Sight Mathematician, Mathematical Association of America, 2012, p. 78. Dave Benson, Music: A Mathematical Offering. Cambridge: Cambridge University Press (2006): 164. J. H. Conway and R. K. Guy, The Book of Numbers, New York: Springer-Verlag, 1995, p. 257. LINKS Peter A. Frazer, Temperament, Midicode, January 2010. Eric Weisstein's World of Music, Comma of Pythagoras Wikipedia, Pythagorean comma FORMULA A229948/A229943 - Omar E. Pol, Oct 25 2013 EXAMPLE 3^12 / 2^19 = 531441/524288 = 1.0136432647705078125 MATHEMATICA RealDigits[N[31441/524288, 50]][[1]] CROSSREFS Cf. A005663, A005664, A010774, A046102. Sequence in context: A011307 A243625 A321872 * A245943 A245557 A197071 Adjacent sequences:  A221360 A221361 A221362 * A221364 A221365 A221366 KEYWORD nonn,cons,easy,fini,full AUTHOR Jonathan Sondow, Jan 19 2013 STATUS approved

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Last modified December 8 06:53 EST 2021. Contains 349590 sequences. (Running on oeis4.)