A273633 Decimal expansion of (Pi/(6*sqrt(3)))^(1/3), the sphericity of the tetrahedron.

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

Offset

0,1

Links

Table of n, a(n) for n=0..85.

Wikipedia, Sphericity.

Index entries for transcendental numbers.

Formula

Equals cube root of A093766. - Michel Marcus, May 27 2016

Example

0.67113929131285036949202906166444513175791684620747512421389971...

Mathematica

RealDigits[Surd[Pi/(6*Sqrt[3]), 3], 10, 120][[1]] (* Amiram Eldar, Jun 29 2023 *)

Prog

(PARI) default(realprecision, 50080); my(x=(Pi/(6*sqrt(3)))^(1/3)); for(k=1, 100, my(d=floor(x)); x=(x-d)*10; print1(d, ", "))

Crossrefs

Cf. A093766, A273634, A273635, A273636, A273637.

Sequence in context: A195714 A247043 A019734 * A021153 A195430 A153269

Adjacent sequences: A273630 A273631 A273632 * A273634 A273635 A273636

Keyword

nonn,cons

Author

Felix Fröhlich, May 27 2016

Extensions

Definition corrected by Georg Fischer, Jul 12 2021

Status

approved