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A105079
Number of distinct prime divisors of 1000^n - 3 where n = 1,2,3,....
0
1, 2, 3, 2, 4, 4, 2, 2, 4, 3, 3, 4, 5, 5, 5, 5, 5, 2, 2, 4, 3, 3, 6, 3, 6, 4, 3, 5, 6, 6, 5, 8, 5, 6, 3, 6, 4, 6, 2, 3, 5, 8, 3, 3, 2, 4, 5, 4, 5, 3, 6, 6, 5, 7, 4, 7, 4, 4, 2, 8
OFFSET
1,2
EXAMPLE
If n=1, then 1000^n - 3 = 1000^1 - 3 = 997 which is a prime, so the first term is 1.
CROSSREFS
Sequence in context: A134834 A035583 A145178 * A338162 A215182 A214906
KEYWORD
nonn
AUTHOR
Parthasarathy Nambi, Apr 06 2005
STATUS
approved