OFFSET
1,4
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..2000
FORMULA
Equals Sum_{n>=0} 1/A165457(n). - Jaume Oliver Lafont, Oct 03 2009
Equals 1 - Integral_{x=-1/e..0} W(x) dx, where W is Lambert's function. - Amiram Eldar, Jul 18 2021
EXAMPLE
1.103638323514...
MATHEMATICA
RealDigits[3/E , 10, 50][[1]] (* G. C. Greubel, Sep 16 2016 *)
PROG
(PARI) 3/exp(1) \\ Michel Marcus, Sep 16 2016
CROSSREFS
KEYWORD
cons,nonn
AUTHOR
Omar E. Pol, Nov 15 2007
EXTENSIONS
Minor edits by Omar E. Pol, Oct 07 2009
STATUS
approved