A388255 Decimal expansion of (1/4) * exp(13*Pi/24) * 2^(3/8).

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

Offset

1,2

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} A022578(k) / exp(k*Pi).

Example

1.7777203696042655348066209574244394521...

Mathematica

First[RealDigits[Exp[(13*Pi)/24]/(2*2^(5/8)), 10, 100]]

Prog

(PARI) (1/4) * exp(13/24 * Pi) * 2^(3/8)

Crossrefs

Cf. A022578.

Sequence in context: A276615 A103983 A232127 * A388301 A195413 A083947

Adjacent sequences: A388252 A388253 A388254 * A388256 A388257 A388258

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved