id:A003424 - OEIS Search Results

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Primes of form (p^x - 1)/(p^y - 1), p prime.
(Formerly M2417)

+0
3

3, 5, 7, 13, 17, 31, 73, 127, 257, 307, 757, 1093, 1723, 2801, 3541, 5113, 8011, 8191, 10303, 17293, 19531, 28057, 30103, 30941, 65537, 86143, 88741, 131071, 147073 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`Bateman, Paul T.; Stemmler, Rosemarie M.; Waring's problem for algebraic number fields and primes of the form (p^r-1)/(p^d-1). Illinois J. Math. 6 1962 142-156.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..4738`
	CROSSREFS	`Cf. A059055, A085104` `Sequence in context: A071111 A038929 A070806 this_sequence A073638 A066464 A062324` `Adjacent sequences: A003421 A003422 A003423 this_sequence A003425 A003426 A003427`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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