OFFSET
1,1
EXAMPLE
35 is a term in the sequence because 35 is an odd composite, 35+9+1=45 is composite and 35+15+1=51 is composite. 33 is not a term in the sequence because 33+9+1 is prime (43).
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Randy L. Ekl, Jan 01 2008
STATUS
approved