OFFSET
1,1
LINKS
V. Kotesovec, Non-attacking chess pieces, 6ed, 2013, p.249
FORMULA
EXAMPLE
3.08827730474174017911584...
MATHEMATICA
RealDigits[N[-2/LambertW[-2/E^2]/(2+LambertW[-2/E^2]), 105]][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vaclav Kotesovec, Feb 21 2014
STATUS
approved