OFFSET
1,2
COMMENTS
a(48) > 10^12. - Lucas A. Brown, Oct 13 2022
LINKS
Lucas A. Brown, Table of n, a(n) for n = 1..47
Lucas A. Brown, semiprimemods.py
EXAMPLE
a(3) = 6 is a term because the 6th semiprime is 15 and 15 == 3 (mod 6).
CROSSREFS
KEYWORD
hard,nonn
AUTHOR
Shyam Sunder Gupta, May 07 2005
EXTENSIONS
a(28)-a(30) from Donovan Johnson, Oct 29 2008
a(1), a(2), and a(31)-a(47) by Lucas A. Brown, Oct 19 2020
STATUS
approved