A124787 - OEIS

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A124787

Primes p such that p divides the Wolstenholme number A007408((p+1)/2).

3, 11, 17, 89, 2305777 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	PROG	`(PARI) {s=0; h=1; forprime(p=3, 2400000, q=(p+1)/2; s=s+sum(k=h, q, 1/k^3); if(numerator(s)%p==0, print1(p, ", ")); h=q+1)} - Klaus Brockhaus, Nov 10 2006`
	CROSSREFS	`Cf. A007408 = Wolstenholme numbers.` `Sequence in context: A061368 A145701 A072982 * A080306 A036448 A128346` `Adjacent sequences: A124784 A124785 A124786 * A124788 A124789 A124790`
	KEYWORD	`more,nonn`
	AUTHOR	`Alexander Adamchuk (alex(AT)kolmogorov.com), Nov 07 2006`
	EXTENSIONS	`a(5) from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 10 2006`

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Last modified February 14 18:09 EST 2012. Contains 205663 sequences.