OFFSET
1,1
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..17
EXAMPLE
a(1) = 403 = floor(e^6) = 13 * 31.
a(2) = 3269017 = floor(e^15) = 773 * 4229.
a(3) = 485165195 = floor(e^20) = 5 * 97033039.
a(4) = 3584912846 = floor(e^22) = 2 * 1792456423.
a(5) = 26489122129 = floor(e^24) = 103 * 257175943.
MATHEMATICA
Select[Table[Floor[Exp[k]], {k, 100}], PrimeOmega[#]==2&] (* James C. McMahon, Sep 14 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Apr 30 2006
EXTENSIONS
a(6)-a(10) from Giovanni Resta, Jun 15 2016
STATUS
approved