A032478 - OEIS

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A032478

Numbers n such that 203*2^n+1 is prime.

13, 25, 29, 33, 45, 57, 65, 153, 197, 245, 637, 1785, 1917, 2045, 4925, 5313, 7449, 8437, 23645, 28273, 34217, 40189, 135125, 141477 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`Ray Ballinger, Proth Search Page` `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`
	CROSSREFS	`Sequence in context: A018991 A018948 A186403 * A161603 A075033 A017533` `Adjacent sequences: A032475 A032476 A032477 * A032479 A032480 A032481`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 15 12:25 EST 2012. Contains 205786 sequences.