A388188 Decimal expansion of (5/2) * Pi^(3/2) / Gamma(3/4)^6.

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

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} A008428(k) / exp(k*Pi).

Example

4.1111379022919275776736141072857420515...

Mathematica

First[RealDigits[(5*Pi^(3/2))/(2*Gamma[3/4]^6), 10, 100]]

Prog

(PARI) (5/2) * Pi^(3/2) / gamma(3/4)^6

Crossrefs

Cf. A008428.

Sequence in context: A370130 A384122 A010326 * A196879 A193349 A380587

Adjacent sequences: A388185 A388186 A388187 * A388189 A388190 A388191

Keyword

nonn,cons

Author

Simon Plouffe, Sep 15 2025

Status

approved