A154605 Decimal expansion of 2/(4th root of 3).

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

Offset

1,2

Comments

The side length of an equilateral triangle with area 1.

Quartic number with denominator 3 and minimal polynomial 3x^4 - 16. - Charles R Greathouse IV, Jun 30 2021

Links

Table of n, a(n) for n=1..105.

Formula

A154605 = 2/A011002 = 2/(3^(1/4)).

Example

1.5196713713031850946623755013090906...

Mathematica

RealDigits[N[2/3^(1/4), 200]][[1]] (* Vladimir Joseph Stephan Orlovsky, Feb 05 2012 *)
RealDigits[2/Surd[3, 4], 10, 120][[1]] (* Harvey P. Dale, Mar 09 2019 *)

Prog

(PARI) 2/3^(1/4)
(PARI) 2/sqrt(sqrt(3))

Crossrefs

Cf. A011002, A120011.

Sequence in context: A010482 A135856 A097414 * A114594 A021662 A082020

Adjacent sequences: A154602 A154603 A154604 * A154606 A154607 A154608

Keyword

cons,nonn

Author

Rick L. Shepherd, Jan 12 2009

Status

approved