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A340565
Decimal expansion of the Product_{lesser twin primes p == 5 (mod 6)} 1/(1 - 1/p^2).
0
1, 0, 5, 6, 9, 3, 2, 2, 9, 1
OFFSET
1,3
COMMENTS
Lesser twin primes A001359 (with the exception of the first prime, 3) are congruent to 5 mod 6: this constant is smaller than A340576.
By extrapolating method most probably the next two decimal digits are (46).
The known high-precision algorithms for Euler products are based on the Dirichlet L function and the Moebius inversion formula (see Mathematica procedure of Jean-François Alcover in A175646).
KEYWORD
nonn,cons,hard,more
AUTHOR
Artur Jasinski, Jan 11 2021
STATUS
approved