A388198 Decimal expansion of (27/8) * Pi^3 / Gamma(3/4)^12.

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

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} A008659(k) / exp(k*Pi).

Example

9.1267856198970861577561071808545005301...

Mathematica

First[RealDigits[(27*Pi^3)/(8*Gamma[3/4]^12), 10, 100]]

Prog

(PARI) (27/8) * Pi^3 / gamma(3/4)^12

Crossrefs

Cf. A008659.

Sequence in context: A222218 A110057 A197830 * A068151 A199378 A318522

Adjacent sequences: A388195 A388196 A388197 * A388199 A388200 A388201

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved