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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
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, 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, 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 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

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

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..1000

EXAMPLE

1.46819112232299378107910175565555486192182334313301519669833294...

MATHEMATICA

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

CROSSREFS

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

Sequence in context: A004786 A263357 A195387 * A181097 A206798 A200366

Adjacent sequences:  A272025 A272026 A272027 * A272029 A272030 A272031

KEYWORD

nonn,cons

AUTHOR

Jean-François Alcover, Apr 18 2016

STATUS

approved

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Last modified June 18 06:56 EDT 2019. Contains 324203 sequences. (Running on oeis4.)