A388709 Decimal expansion of (1/16) * exp(5*Pi/8) * 2^(7/8).

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

Offset

0,1

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

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

Formula

Empirical: Equals Sum_{k>=0} A195861(k) / exp(k*Pi).

Example

0.81661336731282095076262616612374141...

Mathematica

First[RealDigits[Exp[5*Pi/8]/(8*2^(1/8)), 10, 100]] (* Paolo Xausa, Sep 20 2025 *)

Prog

(PARI) (1/16) * exp(5/8 * Pi) * 2^(7/8)

Crossrefs

Cf. A195861.

Sequence in context: A007404 A299627 A157697 * A281785 A240982 A258146

Adjacent sequences: A388706 A388707 A388708 * A388710 A388711 A388712

Keyword

nonn,cons,easy

Author

Simon Plouffe, Sep 18 2025

Status

approved