OFFSET
0,1
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.14 Digital Search Tree Constants, p. 355.
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..10000
Steven R. Finch, Errata and Addenda to Mathematical Constants. p. 4.
Eric Weisstein's Mathworld, Erdős-Borwein Constant
FORMULA
EXAMPLE
0.6516737881038229409458253807977311451201449178764391089445...
MATHEMATICA
alpha = 1/2 - QPolyGamma[0, 1, 2]/Log[2]; delta = (1+alpha)/4; RealDigits[delta, 10, 102] // First
PROG
(PARI) default(realprecision, 100); (1 + suminf(k=1, 1/(2^k - 1)))/4 \\ G. C. Greubel, Sep 06 2018
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Aug 11 2014
STATUS
approved