A032454 - OEIS

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A032454

Numbers n such that 155*2^n+1 is prime.

1, 7, 17, 23, 29, 31, 41, 261, 353, 437, 447, 591, 649, 677, 1253, 1301, 2449, 9313, 11749, 16661, 25173, 32887, 38761, 67973, 79557, 149423 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Ray Ballinger, Proth Search Page` `Ray Ballinger and 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: A070416 A087168 A191087 * A107643 A198441 A058529` `Adjacent sequences: A032451 A032452 A032453 * A032455 A032456 A032457`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`Extended by Hugo Pfoertner (hugo(AT)pfoertner.org), Jul 2 2003`

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.