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A273056 Discriminator of Sylvester's sequence A000058. 1
1, 2, 3, 7, 13, 13, 17, 29, 31, 61, 61, 61, 61, 61, 61, 61, 61, 109, 109, 109, 109, 109, 109, 109, 109, 128, 128, 128, 128, 128, 128, 128, 128, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 512, 512, 512, 512, 512 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The discriminator of a sequence is the least positive integer k such that the first n terms of the sequence are pairwise incongruent, modulo k.

LINKS

Table of n, a(n) for n=1..70.

CROSSREFS

Cf. A000058.

Sequence in context: A278007 A081256 A084955 * A026472 A286176 A318401

Adjacent sequences:  A273053 A273054 A273055 * A273057 A273058 A273059

KEYWORD

nonn

AUTHOR

Jeffrey Shallit, May 14 2016

STATUS

approved

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Last modified May 30 17:22 EDT 2020. Contains 334728 sequences. (Running on oeis4.)