id:A050578 - OEIS Search Results

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Numbers n such that 105*2^n-1 is prime.

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2, 3, 5, 6, 8, 9, 25, 32, 65, 113, 119, 155, 177, 299, 335, 426, 462, 617, 896, 1377, 1847, 2495, 2810, 3743, 3884, 3897, 5235, 6418, 6550, 8066, 8757, 9518, 11610, 16542, 17485, 17984, 18530, 18885, 25017, 26642, 30366, 40470, 45770, 56903, 57819, 66077, 69958, 75569, 92357, 108867, 145422, 201556, 262670, 280022, 472430, 484658, 530360, 801978, 814850 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300` `Wilfrid Keller, List of primes k.2^n - 1 for k < 300` `Index entries for sequences of n such that k2^n-1 (or k2^n+1) is prime` `Kosmaj, Riesel list k<300.`
	CROSSREFS	`Sequence in context: A063756 A117522 A028374 this_sequence A028776 A028734 A028755` `Adjacent sequences: A050575 A050576 A050577 this_sequence A050579 A050580 A050581`
	KEYWORD	`hard,nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 29 1999`
	EXTENSIONS	`More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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