OFFSET
1,2
COMMENTS
Non-semiprimes with non-semiprime subscripts (or indices).
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Apr 16 2010
EXTENSIONS
Corrected (66 inserted) R. J. Mathar, Apr 25 2010
STATUS
approved