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A076845 Least k>0 such that n^k + n - 1 is prime. 2
1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 16, 1, 1, 4, 3, 1, 2, 1, 1, 4, 1, 3, 2, 1, 2, 10, 1, 1, 108, 3, 1, 2, 1, 1, 2, 2, 1, 2, 1, 3, 2, 1, 2, 20, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 4, 2, 2, 7, 8, 3, 1, 2, 1, 24, 2, 1, 1, 12, 4, 3, 8, 1, 1, 4, 3, 1, 194, 3, 1, 2, 1, 2, 2, 1, 8, 2, 1, 1, 4, 2, 2, 54, 1, 1, 4, 1, 1 (list; graph; refs; listen; history; internal format)
OFFSET

2,4

CROSSREFS

Cf. A078178, A076846.

Sequence in context: A025433 A025434 A111178 * A161906 A204901 A016014

Adjacent sequences:  A076842 A076843 A076844 * A076846 A076847 A076848

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Nov 20 2002

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Last modified February 17 04:43 EST 2012. Contains 205982 sequences.