OFFSET
1,1
COMMENTS
a(58) associated with the composite 81 is either 0 or larger than 18*10^7. - R. J. Mathar, Mar 05 2008
EXAMPLE
a(5) = 0, composite(5) = 10, composite(6) = 12, a(6) = 252.
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Aug 11 2005
EXTENSIONS
More terms from R. J. Mathar, Mar 05 2008
STATUS
approved