A273037 Discriminator of the first n Fermat numbers A000215.

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.

Links

Table of n, a(n) for n=1..73.

Crossrefs

Cf. A000215.

Sequence in context: A273377 A065019 A071328 * A006538 A066281 A072063

Adjacent sequences: A273034 A273035 A273036 * A273038 A273039 A273040

Keyword

nonn

Author

Jeffrey Shallit, May 13 2016

Status

approved