OFFSET
1,2
COMMENTS
Is there any known closed form for this sum?
EXAMPLE
1.526068134473330824778047225162438405449754240466465650758365651679...
MATHEMATICA
digits = 100; NSum[1/(1 + n!), {n, 0, Infinity}, NSumTerms -> digits, WorkingPrecision -> digits+5] // RealDigits[#, 10, digits]& // First
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Jean-François Alcover, Mar 20 2013
STATUS
approved