This site is supported by donations to The OEIS Foundation.

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A010774 Decimal expansion of 12th root of 2. 8
 1, 0, 5, 9, 4, 6, 3, 0, 9, 4, 3, 5, 9, 2, 9, 5, 2, 6, 4, 5, 6, 1, 8, 2, 5, 2, 9, 4, 9, 4, 6, 3, 4, 1, 7, 0, 0, 7, 7, 9, 2, 0, 4, 3, 1, 7, 4, 9, 4, 1, 8, 5, 6, 2, 8, 5, 5, 9, 2, 0, 8, 4, 3, 1, 4, 5, 8, 7, 6, 1, 6, 4, 6, 0, 6, 3, 2, 5, 5, 7, 2, 2, 3, 8, 3, 7, 6, 8, 3, 7, 6, 8, 6, 3, 9, 4, 5, 5, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS This number figures in our standard 12-tone tuning of music today. It represents the frequency ratio of a semitone in equal temperament. The equal-tempered chromatic scale divides the octave, which has a ratio of 2:1, into twelve parts of equal ratio: [2^(n/12), 2^((n+1)/12)), 0 <= n <= 11. - Daniel Forgues, Feb 28 2013 REFERENCES D. Coulter, Digital Audio Processing. Berkeley, California: Focal Press (2000) p. 30 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..5000 Wikipedia, Twelfth_root_of_two EXAMPLE 2^(1/12) = 1.059463094359295264561825294946341700779204317494... MATHEMATICA RealDigits[N[2^(1/12), 100]][[1]] (* Alonso del Arte, Jan 06 2011 *) PROG (PARI) sqrtn(2, 12) \\ Charles R Greathouse IV, Apr 14 2014 CROSSREFS Cf. A103922. Cf. A214832, A254531. Sequence in context: A198990 A153356 A129956 * A272610 A198748 A196754 Adjacent sequences:  A010771 A010772 A010773 * A010775 A010776 A010777 KEYWORD nonn,cons AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.