OFFSET
1,2
COMMENTS
Inverse of the constant A184084.
EXAMPLE
(1+1/2^2) *(1+1/2^3) *(1+1/2^5) *(1+1/2^7) *(1+1/2^11)* .... = 1.4624312190069598013...
MATHEMATICA
RealDigits[Times@@(1+1/2^Prime[Range[100]]), 10, 120][[1]] (* Harvey P. Dale, Sep 28 2013 *)
PROG
(PARI) prodeuler(p=2, 1e6, 1.+(1.>>p)) \\ Charles R Greathouse IV, Aug 09 2022
CROSSREFS
KEYWORD
cons,nonn
AUTHOR
R. J. Mathar, Jan 09 2011
STATUS
approved