A354635 Decimal expansion of the negated digamma function at 7/8.

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

Offset

0,1

Links

Table of n, a(n) for n=0..90.

Index entries for sequences related to the digamma function

Formula

Equals (sqrt(2)+1)*Pi/2 - sqrt(2)*arcsinh(1) - 4*log(2) - gamma, where gamma is Euler's constant (A001620). - Amiram Eldar, Jun 03 2022

Example

psi(7/8) = -0.80401707154769..

Mathematica

RealDigits[PolyGamma[7/8], 10, 100][[1]] (* Amiram Eldar, Jun 03 2022 *)

Crossrefs

Cf. A001620, A091648.

Sequence in context: A350811 A154214 A330448 * A019959 A200482 A073824

Adjacent sequences: A354632 A354633 A354634 * A354636 A354637 A354638

Keyword

nonn,cons

Author

R. J. Mathar, Jun 01 2022

Status

approved