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A125634
Smallest prime p such that 19^n divides p^18 - 1.
21
2, 127, 2819, 2819, 2342959, 2342959, 47579927, 3620189879, 513127081109, 8388044818849, 77460384757423, 2649283656602003, 252317900773542353, 2467410166021233673, 50407811312994280933, 179869204428830533411
OFFSET
1,1
PROG
(PARI) See A125609 - Martin Fuller, Jan 11 2007
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. A125632 = Smallest prime p such that 13^n divides p^12 - 1. Cf. A125633 = Smallest prime p such that 17^n divides p^16 - 1. Cf. A125635 = Smallest prime p such that 257^n divides p^256 - 1.
Sequence in context: A141928 A343184 A062588 * A075596 A092832 A181001
KEYWORD
hard,nonn
AUTHOR
Alexander Adamchuk, Nov 28 2006
EXTENSIONS
More terms from Martin Fuller, Jan 11 2007
STATUS
approved