cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A340442 Decimal expansion of zeta''(3), the second derivative of the Riemann zeta function at 3.

Original entry on oeis.org

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

Views

Author

R. J. Mathar, Jan 07 2021

Keywords

Examples

			0.239746917305387184244176549838881...
		

Crossrefs

Programs

  • Maple
    evalf(Zeta(2,3.0),100) ;
  • Mathematica
    RealDigits[Zeta''[3], 10, 100][[1]] (* Amiram Eldar, May 28 2021 *)
  • PARI
    zeta''(3) \\ Michel Marcus, Jan 07 2021

Formula

Equals Sum_{k>=1} log(k)^2/k^3. - Amiram Eldar, May 28 2021