OFFSET
0,1
FORMULA
EXAMPLE
0.29340799302602338740477843394029002038314588271248926...
MAPLE
A := n -> I*(polylog(-n, -I) - exp(I*Pi*n)*polylog(-n, I)) / exp(I*Pi*n/2):
Digits := 120; sum(A(n)/n!, n = 0..infinity): evalf(%)*10^91:
ListTools:-Reverse(convert(floor(%), base, 10));
MATHEMATICA
RealDigits[Sec[1] - Tan[1], 10 , 100][[1]] (* Amiram Eldar, Aug 17 2021 *)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Peter Luschny, Aug 13 2021
STATUS
approved