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A083020
Prime factors of 3^(3^n) + 2.
0
5, 29, 5, 31, 127, 11, 693236134999, 5, 15679, 2372959, 5945531, 3312453269, 121032673159, 87189642485960958202911070585860771696964072404731750085525219437990967093723439943475549906831683116791055225665629
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
Sequence in context: A132550 A154587 A374602 * A033503 A181616 A057206
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, May 31 2003
EXTENSIONS
Corrected by T. D. Noe, Nov 15 2006
STATUS
approved