OFFSET
0,1
COMMENTS
The last entry is 3^(3^5) + 2, a probable prime. Conjecture: These numbers have no repeating factors or 3^(3^n) + 2 is squarefree.
The Magma Calculator (http://magma.maths.usyd.edu.au/calc/) confirms that the term given above for a(13) is, in fact, prime. - Jon E. Schoenfield, Aug 24 2009
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, May 31 2003
EXTENSIONS
Corrected by T. D. Noe, Nov 15 2006
STATUS
approved