A388373 Decimal expansion of exp(-Pi/24) * 2^(3/8).

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

Offset

1,3

Links

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

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

Index entries for transcendental numbers.

Formula

Empirical: Equals Sum_{k>=0} A029552(k) / exp(k*Pi).

Example

1.1377248228902601159433747924343106616...

Mathematica

First[RealDigits[2^(3/8)*Exp[-1/24*Pi], 10, 100]]

Prog

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

Crossrefs

Cf. A029552.

Sequence in context: A348722 A388320 A387638 * A349614 A349613 A016620

Adjacent sequences: A388370 A388371 A388372 * A388374 A388375 A388376

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved