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A152177
Smallest prime factor of G+n, where G is any sufficiently large power tower of 3, e.g., Graham's number.
1
3, 2, 11, 2, 61094071, 2, 3, 2, 5, 2, 17, 2, 3, 2, 41, 2, 147331, 2, 3, 2, 19, 2, 7, 2, 3, 2, 101117, 2, 5, 2, 3, 2, 293, 2
OFFSET
0,1
EXAMPLE
a(2) = 11 because 3^3^3^... + 2 = 0 (mod 11).
CROSSREFS
Cf. A152178.
Sequence in context: A248242 A215598 A322603 * A110326 A112061 A238398
KEYWORD
nonn,more
AUTHOR
Karl W. Heuer, Nov 28 2008
STATUS
approved