OFFSET
1,1
EXAMPLE
For n = 1, a(1) = ((2^prime(1+2)-2)/prime(1+2))/3 = ((2^prime(3)-2)/prime(3))/3 = ((2^5-2)/5)/3 = 30/5/3 = 2
CROSSREFS
KEYWORD
nonn
AUTHOR
Vassilis Papadimitriou, Oct 17 2008
STATUS
approved