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A273037
Discriminator of the first n Fermat numbers A000215.
1
1, 3, 5, 11, 11, 19, 19, 23, 23, 23, 47, 53, 53, 53, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 107, 163, 163, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167
OFFSET
1,2
COMMENTS
The discriminator of a sequence is the least positive integer k such that the first n terms are pairwise inequivalent, modulo k.
CROSSREFS
Cf. A000215.
Sequence in context: A273377 A065019 A071328 * A006538 A066281 A072063
KEYWORD
nonn
AUTHOR
Jeffrey Shallit, May 13 2016
STATUS
approved