A388341 Decimal expansion of 4 * exp(-11*Pi/12) * 2^(3/4).

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

Offset

0,1

Links

Table of n, a(n) for n=0..86.

Simon Plouffe, Numbers in the base e^Pi, 2025.

Formula

Empirical: Equals Sum_{k>=0} A022617(k) / exp(k*Pi).

Example

0.37770624343748620349960822373465362548...

Mathematica

First[RealDigits[4*2^(3/4)*Exp[(-11*Pi)/12], 10, 100]]

Prog

(PARI) 4 * exp(-11/12 * Pi) * 2^(3/4)

Crossrefs

Cf. A022617.

Sequence in context: A123879 A384143 A193016 * A386752 A349604 A325894

Adjacent sequences: A388338 A388339 A388340 * A388342 A388343 A388344

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved