A388469 Decimal expansion of exp(Pi / 8) / 2^(5/8).

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

Offset

0,1

Links

Table of n, a(n) for n=0..86.

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

Index entries for transcendental numbers.

Formula

Empirical: Equals Sum_{k>=0} A083365(k) / exp(k*Pi).

Example

0.96029196922422566603475977093062307625...

Mathematica

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

Prog

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

Crossrefs

Cf. A083365.

Sequence in context: A388644 A154161 A388791 * A388637 A380737 A393636

Adjacent sequences: A388466 A388467 A388468 * A388470 A388471 A388472

Keyword

nonn,cons

Author

Simon Plouffe, Sep 17 2025

Status

approved