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.

A383432 Decimal expansion of the multiple prime zeta value p[2, 1, 1].

Original entry on oeis.org

0, 3, 7, 1, 6, 7, 3, 4, 3, 5, 4
Offset: 0

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Author

Artur Jasinski, Apr 27 2025

Keywords

Comments

Prime multiple zeta constants p[m,...,n] are equivalents of multiple zeta constants when successive natural numbers are replaced by successive primes.
For complete list of multiple prime zeta values up to weight 6 see A382234.

Examples

			0.03716734354...
		

Crossrefs

Programs

  • PARI
    f(e)=my(S=sumeulerrat(1/x^2),u=0.,v=0,w=0.);forprime(p=2,prime(2^e),u+=v*S;S-=1/p^2;v=w/p;w+=1/p);u;
    f(30) \\ Bill Allombert

Formula

Equals Sum_{p,q,r prime p>q>r} 1/(p^2*q*r).
Equals (p[2, 1, 3] + p[2, 3, 1] + p[4, 1, 1] + p[2, 1, 1, 2] + p[2, 1, 2, 1] + 2 p[2, 2, 1, 1])/p[2].
Equals (p[2] p[4] + p[2, 1]^2 + p[2] p[2, 2] + p[2, 4] + p[2, 1, 3] + p[2, 2, 2] - p[2, 3, 1] - p[4, 1, 1] + p[2, 1, 1, 2] - p[2, 1, 2, 1] - 2 p[2, 2, 1, 1] - p[2]^3)/p[2].