A388312 Decimal expansion of (1/8) * exp(7*Pi/8) * 2^(3/8).

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

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} A022586(k) / exp(k*Pi).

Example

2.5329438994882035698426390369659864242...

Mathematica

First[RealDigits[Exp[(7*Pi)/8]/(4*2^(5/8)), 10, 100]]

Prog

(PARI) (1/8) * exp(7/8 * Pi) * 2^(3/8)

Crossrefs

Cf. A022586.

Sequence in context: A195784 A279623 A287040 * A212887 A163766 A004200

Adjacent sequences: A388309 A388310 A388311 * A388313 A388314 A388315

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved