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A270151 Discriminator of the Fibonacci numbers; least positive integer r such that F(2), F(3), ..., F(n+1) are all incongruent modulo r 2
1, 2, 3, 5, 8, 9, 14, 14, 15, 15, 15, 30, 30, 30, 30, 30, 35, 35, 35, 35, 59, 59, 59, 59, 79, 79, 83, 83, 83, 83, 83, 83, 120, 120, 120, 157, 157, 157, 157, 173, 173, 173, 173, 173, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 311, 311, 311, 311, 337, 337, 337, 337, 337, 409, 409, 409, 409, 431 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..5000

Arnold, L. K.; Benkoski, S. J.; and McCabe, B. J.; The discriminator (a simple application of Bertrand's postulate). Amer. Math. Monthly 92 (1985), 275-277.

CROSSREFS

Cf. A016726.

Sequence in context: A195896 A058237 A251599 * A009388 A190803 A125871

Adjacent sequences:  A270148 A270149 A270150 * A270152 A270153 A270154

KEYWORD

nonn

AUTHOR

Jeffrey Shallit, Mar 12 2016

STATUS

approved

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Last modified November 18 19:48 EST 2019. Contains 329288 sequences. (Running on oeis4.)