A222458 Decimal expansion of the negated value of the digamma function at 5/6.

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

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Eric Weisstein's World of Mathematics, Gauss's Digamma Theorem.

Wikipedia, Digamma function: Gauss's digamma theorem.

Index entries for sequences related to the digamma function

Formula

Psi(5/6) = -gamma + Pi*sqrt(3)/2 - 3*log(3)/2 - 2*log(2).

Example

Psi(5/6) = -0.890729412672261240642726801919310525738296...

Mathematica

RealDigits[-PolyGamma[5/6], 10, 90][[1]]

Prog

(PARI) -psi(5/6)
(Maxima) fpprec:90; ev(bfloat(-psi[0](5/6)));

Crossrefs

Cf. A020759, A047787, A200064, A222457.

Sequence in context: A217597 A021845 A133747 * A351222 A370093 A019872

Adjacent sequences: A222455 A222456 A222457 * A222459 A222460 A222461

Keyword

nonn,cons

Author

Bruno Berselli, Feb 21 2013

Status

approved