1,2

2^(7/12) is the multiplier with respect to a base frequency to produce a perfect fifth interval in an equal tempered chromatic scale.

Table of n, a(n) for n=1..101.

Wikipedia, Twelfth root of two

Index entries for sequences based on music

Equals A010774^7. - Michel Marcus, Oct 08 2019

1.498307076876681498...

First@ RealDigits[2^(7/12), 10, 105] (* Michael De Vlieger, Oct 25 2019 *)

(PARI) sqrtn(2^7, 12) \\ Michel Marcus, Oct 08 2019

Cf. A010774, A103922, A328228.

Sequence in context: A249272 A280630 A215617 * A198548 A134902 A110992

Adjacent sequences: A328226 A328227 A328228 * A328230 A328231 A328232

nonn,cons

Daniel Hoyt, Oct 08 2019

a(17) ff. corrected by Georg Fischer, Apr 04 2020

approved