A220605 Decimal expansion of Gamma(2/7).

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

Offset

1,1

Comments

See the second comment of A220086.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index to sequences related to the Gamma function

Formula

Equals Pi*sec(3*Pi/14)/A220606.

Example

3.1491151177599365909701136646807688922297786117662526...

Mathematica

RealDigits[Gamma[2/7], 10, 90][[1]]

Prog

(Maxima) fpprec:90; ev(bfloat(gamma(2/7)));
(PARI) gamma(2/7) \\ Charles R Greathouse IV, Feb 11 2025

Crossrefs

Cf. A160389 (see the first comment of A220086).

Sequence in context: A025097 A122115 A049916 * A094166 A266131 A338871

Adjacent sequences: A220602 A220603 A220604 * A220606 A220607 A220608

Keyword

nonn,cons,changed

Author

Bruno Berselli, Dec 17 2012

Status

approved