OFFSET
1,2
LINKS
Steven R. Finch, Errata and Addenda to Mathematical Constants, p. 55.
Martin Hessler and Johan Wästlund, Edge cover and polymatroid flow problems
FORMULA
W(1)^2 + 2W(1), where W is the Lambert W-function (also known as ProductLog).
EXAMPLE
1.4559380926764041940121489409573249821802836023232...
MATHEMATICA
RealDigits[ProductLog[1]^2 + 2*ProductLog[1], 10, 104] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Sep 04 2014
STATUS
approved