OFFSET
2,2
LINKS
Alois Panholzer and Helmut Prodinger, Computer-free evaluation of an infinite double sum via Euler sums Séminaire Lotharingien de Combinatoire 55 (2005), Article B55a
Eric Weisstein's MathWorld, Harmonic Number.
FORMULA
Equals 10*zeta(5) + zeta(2)*zeta(3) or, 10*zeta(5) + (Pi^2/6)*zeta(3).
EXAMPLE
12.346581901730995381510740306055467252652960661679262328437749...
MATHEMATICA
RealDigits[10*Zeta[5] + (Pi^2/6)*Zeta[3], 10, 104] // First
PROG
(PARI) 10*zeta(5) + zeta(2)*zeta(3) \\ Michel Marcus, Apr 14 2015
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Apr 14 2015
STATUS
approved