A388310 Decimal expansion of (1/8) * exp(19*Pi/24) * 2^(5/8).

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

Offset

1,1

Links

Table of n, a(n) for n=1..87.

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

Formula

Empirical: Equals Sum_{k>=0} A022584(k) / exp(k*Pi).

Example

2.3183822357401966825952223908380932733...

Mathematica

First[RealDigits[Exp[(19*Pi)/24]/(4*2^(3/8)), 10, 100]]

Prog

(PARI) (1/8) * exp(19/24 * Pi) * 2^(5/8)

Crossrefs

Cf. A022584.

Sequence in context: A081320 A147865 A266614 * A175314 A331123 A182223

Adjacent sequences: A388307 A388308 A388309 * A388311 A388312 A388313

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved