A328229 Decimal expansion of 2^(7/12).

1, 4, 9, 8, 3, 0, 7, 0, 7, 6, 8, 7, 6, 6, 8, 1, 4, 9, 8, 7, 9, 9, 2, 8, 0, 7, 3, 2, 0, 2, 9, 7, 9, 5, 7, 9, 6, 3, 0, 2, 1, 5, 1, 5, 5, 3, 7, 3, 1, 7, 4, 6, 8, 7, 6, 4, 4, 1, 0, 2, 3, 8, 4, 4, 1, 0, 5, 1, 5, 7, 7, 0, 9, 4, 1, 9, 9, 1, 8, 7, 2, 0, 6, 9, 1, 0, 4, 9, 7, 9, 6, 9, 7, 8, 2, 4, 3, 5, 4, 6, 9

Offset: 1

Author

Daniel Hoyt, Oct 08 2019

Keywords

• nonn
• cons

Comments

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

Examples

			1.498307076876681498...
		

Links

• Wikipedia, Twelfth root of two
• Index entries for sequences based on music

Crossrefs

Cf. A010774, A103922, A328228.

Programs

Mathematica

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

PARI

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

Formula

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

Extensions

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