OFFSET
1,1
EXAMPLE
7 is a term because 7 (prime) = 21/3 = semiprime(7)/sum of digits of semiprime(7);
36 is a term because 37 (prime) = 111/3 = semiprime(36)/sum of digits of semiprime(36).
MAPLE
CROSSREFS
KEYWORD
nonn,base,less
AUTHOR
Juri-Stepan Gerasimov, Apr 20 2010
EXTENSIONS
More terms from R. J. Mathar, Apr 26 2010
STATUS
approved