OFFSET
1,1
LINKS
John Cerkan, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[1, 12000, 2], PrimeOmega[#]==6&] (* Harvey P. Dale, Nov 26 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Patrick De Geest, Jun 15 1998
STATUS
approved