OFFSET
1,4
COMMENTS
In general, for s > 0, Product_{k>=1} (1 + 1/A007528(k)^(2*s+1)) / (1 - 1/A007528(k)^(2*s+1)) = (1 - 1/2^(2*s + 1)) * (3^(2*s + 1) - 1) * (2*s)! * zeta(2*s + 1) / (sqrt(3) * A002114(s) * Pi^(2*s + 1)).
EXAMPLE
1.0091345086384744780711375395892055881745647852...
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vaclav Kotesovec, May 02 2020
EXTENSIONS
More digits from Vaclav Kotesovec, Jun 27 2020
STATUS
approved