A125632 - OEIS

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A125632

Smallest prime p such that 13^n divides p^12 - 1.

2, 19, 239, 239, 220861, 7654109, 533810141, 533810141, 822557039, 38050596989, 2395794301259, 58713568184837, 358661570404751, 22771419458231473, 65106791321062951, 1951482088631313647, 13942901952235522979 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..17.` `W. Keller and J. Richstein Fermat quotients that are divisible by p.`
	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 A191806 A065923` `Adjacent sequences: A125629 A125630 A125631 * A125633 A125634 A125635`
	KEYWORD	`hard,nonn`
	AUTHOR	`Alexander Adamchuk, Nov 28 2006`
	EXTENSIONS	`More terms from Martin Fuller (martin_n_fuller(AT)btinternet.com), Jan 11 2007`
	STATUS	`approved`

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Last modified May 25 11:46 EDT 2013. Contains 225647 sequences.