OFFSET
1,3
LINKS
Michael I. Shamos, A catalog of the real numbers, (2007). See p. 120.
FORMULA
Equals Sum_{n>=1} (1/n!)*Sum_{k=1..n} 1/(2*k) (see Shamos).
Equals A347952 / 2.
EXAMPLE
1.08269110766346817971049317424621528419071038...
MATHEMATICA
RealDigits[E(EulerGamma-ExpIntegralEi[-1])/2, 10, 100][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Stefano Spezia, Oct 27 2024
STATUS
approved