A388939 - OEIS

A388939

Decimal expansion of Pi^(1/3) * 3^(2/3) * Gamma(11/12)^(2/3) / Gamma(2/3)^(2/3) / Gamma(3/4)^(2/3) / (sqrt(2) * (1+3^(1/2)))^(2/3).

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

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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} A262930(k) / exp(k*Pi).

Equals 3^(3/4) / (2^(5/6) * (1 + sqrt(3))^(1/3)). - Vaclav Kotesovec, Jan 09 2026

EXAMPLE

0.91513750447758119898074172599060967829...

MATHEMATICA