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

Author

Jeffrey Shallit, May 13 2016

Keywords

• nonn

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.