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A125632
Smallest prime p such that 13^n divides p^12 - 1.
21
2, 19, 239, 239, 220861, 7654109, 533810141, 533810141, 822557039, 38050596989, 2395794301259, 58713568184837, 358661570404751, 22771419458231473, 65106791321062951, 1951482088631313647, 13942901952235522979
OFFSET
1,1
PROG
(PARI) See A125609
CROSSREFS
Cf. A125609 = Smallest prime p such that 3^n divides p^2 - 1. Cf. A125610 = Smallest prime p such that 5^n divides p^4 - 1. Cf. A125611 = Smallest prime p such that 7^n divides p^6 - 1. Cf. A125612 = Smallest prime p such that 11^n divides p^10 - 1. Cf. A125633 = Smallest prime p such that 17^n divides p^16 - 1. Cf. A125634 = Smallest prime p such that 19^n divides p^18 - 1. Cf. A125635 = Smallest prime p such that 257^n divides p^256 - 1.
Sequence in context: A024227 A106945 A211886 * A124125 A234505 A239108
KEYWORD
hard,nonn
AUTHOR
Alexander Adamchuk, Nov 28 2006
EXTENSIONS
More terms from Martin Fuller, Jan 11 2007
STATUS
approved