OFFSET
1,2
COMMENTS
The definition is: numbers of the form A000040(i)^A167707(j), sorted, without repetition, any i,j>=1. [From R. J. Mathar, May 22 2010]
EXAMPLE
a(1)=2^0=1, a(2)=2^1=2, a(3)=3^1=3, a(4)=5^1=5, a(5)=7^1=7, a(6)=2^3=8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Dec 11 2009, Dec 14 2009
EXTENSIONS
Entries checked by R. J. Mathar, May 22 2010
STATUS
approved