The computation of exponent with n exactly.n is the number you import.
ex:
n=20--> e=2,7825953232895456622222 (n=20)
n=30-->e=2,78233.......................................( n=30)
try this link
number e
copy and paste this and store it as (if necessary multiple) string(s)
show the amount of decimals of
e depending on
n by using these strings.
don't see any option here to display over 14 decimals.