A203129 Decimal expansion of (2/3)! = Gamma(5/3).

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

Offset

0,1

Links

Table of n, a(n) for n=0..98.

Index to sequences related to the Gamma function.

Formula

Equals 2*A073006/3. - R. J. Mathar, Jan 15 2021

Equals Integral_{x=0..oo} exp(-x^(3/2)) dx. - Ilya Gutkovskiy, Apr 10 2024

Equals sqrt(Pi)*Gamma(7/3)/(2^(4/3)*Gamma(7/6)). - Gerry Martens, May 01 2024

Equals 4*Pi / (3^(3/2) * Gamma(1/3)). - Vaclav Kotesovec, May 02 2024

Example

0.90274529295093361129685868543634252367955151070452913226268...

Mathematica

RealDigits[Gamma[5/3], 10, 120][[1]] (* Amiram Eldar, May 29 2023 *)

Prog

(PARI) gamma(5/3) \\ Charles R Greathouse IV, Mar 25 2014

Crossrefs

Cf. A073006.

Sequence in context: A093767 A199175 A261313 * A107091 A200306 A153790

Adjacent sequences: A203126 A203127 A203128 * A203130 A203131 A203132

Keyword

nonn,cons

Author

N. J. A. Sloane, Dec 29 2011

Status

approved