OFFSET
-11,2
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.14 Digital Search Tree Constants, p. 359.
LINKS
Steven R. Finch, Errata and Addenda to Mathematical Constants, p. 44.
Eric Weisstein's Mathworld, Erdős-Borwein Constant, Tree Searching
FORMULA
EXAMPLE
0.000000000001237412575736110228719610646672874297732...
MAPLE
evalf(1/log(2)*sum(1/n*csch(2*Pi^2*n/log(2)), n=1..infinity), 120) # Vaclav Kotesovec, Nov 05 2014
MATHEMATICA
digits = 100; chi = (1/Log[2])*NSum[(1/n)*Csch[2*Pi^2*(n/Log[2])], {n, 1, Infinity}, WorkingPrecision -> digits+5]; RealDigits[chi, 10, digits] // First
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Jean-François Alcover, Nov 05 2014
STATUS
approved