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A081755
Number of noncongruent solutions to x^(2^m) == 1 (mod n) when n is such that the number of solutions is the same for any m>=1.
0
1, 1, 2, 2, 2, 2, 4, 2, 2, 4, 2, 2, 2, 4, 2, 2, 8, 2, 4, 2, 4, 4, 2, 4, 2, 4, 2, 2, 2, 2, 8, 4, 2, 2, 4, 4, 2, 4, 2, 8, 4, 4, 2, 2, 2, 8, 2, 8, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 2, 4, 4, 2, 4, 2, 8, 4, 2, 4, 2, 4, 2, 4, 2, 8, 4, 2, 4, 2
OFFSET
1,3
CROSSREFS
Cf. A060594.
Sequence in context: A377516 A069733 A187467 * A366538 A366536 A349355
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Apr 08 2003
STATUS
approved