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 A272028 Decimal expansion of Product_{p prime} (1+1/p)^(1/p), an infinite product considered and computed by Marc Deléglise. 2

%I

%S 1,4,6,8,1,9,1,1,2,2,3,2,2,9,9,3,7,8,1,0,7,9,1,0,1,7,5,5,6,5,5,5,5,4,

%T 8,6,1,9,2,1,8,2,3,3,4,3,1,3,3,0,1,5,1,9,6,6,9,8,3,3,2,9,4,0,7,1,2,5,

%U 1,1,1,4,9,8,4,7,2,0,9,5,7,2,4,9,4,4,2,4,4,2,3,4,6,9,4,9,2,7

%N Decimal expansion of Product_{p prime} (1+1/p)^(1/p), an infinite product considered and computed by Marc Deléglise.

%D Steven R. Finch, Mathematical Constants, Cambridge, 2003, Section 2.9 p. 122.

%H G. C. Greubel, <a href="/A272028/b272028.txt">Table of n, a(n) for n = 1..1000</a>

%e 1.46819112232299378107910175565555486192182334313301519669833294...

%t digits = 98; Exp[NSum[(-1)^(n-1)*PrimeZetaP[n-1]/(n-2), {n, 3, Infinity}, WorkingPrecision -> digits+10, Method -> "AlternatingSigns"]] // RealDigits[#, 10, digits]& // First

%Y Cf. A242623 (same product without restriction to primes).

%K nonn,cons

%O 1,2

%A _Jean-François Alcover_, Apr 18 2016

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Last modified October 23 11:19 EDT 2019. Contains 328345 sequences. (Running on oeis4.)