A388348 Decimal expansion of 8 * exp(-5*Pi/4) * 2^(3/4).

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

Offset

0,1

Links

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

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

Formula

Empirical: Equals Sum_{k>=0} A022625(k) / exp(k*Pi).

Example

0.26508920423432922288909369967594100793...

Mathematica

First[RealDigits[8*2^(3/4)*Exp[(-5*Pi)/4], 10, 100]]

Prog

(PARI) 8 * exp(-5/4 * Pi) * 2^(3/4)

Crossrefs

Cf. A022625.

Sequence in context: A118138 A240023 A004583 * A348720 A356476 A175995

Adjacent sequences: A388345 A388346 A388347 * A388349 A388350 A388351

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved