OFFSET
1,1
LINKS
Mathoverflow, Infinite product experimental mathematics question, Apr 21 2010.
Péter Pál Pach and Richárd Palincza, The counting version of a problem of Erdős, arXiv:2009.05305 [math.CO], 2020. Mentions this constant.
FORMULA
Equals exp(A131688). - Amiram Eldar, Sep 14 2020
EXAMPLE
3.517487255902369649399793699323864170685620786764938...
MATHEMATICA
First[RealDigits[Exp[NSum[Log[s]/(s(s-1)), {s, 2, Infinity}, NSumTerms -> 1000, Method -> {"NIntegrate", "MaxRecursion" -> 100}, WorkingPrecision -> 100]]]] (* Stefano Spezia, Jun 07 2024 *)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Michel Marcus, Sep 14 2020
EXTENSIONS
More terms from Amiram Eldar, Sep 14 2020
STATUS
approved