OFFSET
0,1
COMMENTS
Values of 0, 3 or 6 are obviously absent, because that would indicate divisibility by 3 which does not happen for prime products involving primes >3.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Mar 05 2009
EXTENSIONS
Edited by R. J. Mathar, Apr 01 2009
STATUS
approved