A205771 - OEIS

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A205771

Primes of the form 2*5^n+1.

3, 11, 251, 2441406251, 56843418860808014869689941406251, 49303806576313237838233035330174139354575402194313937798142433166503906251 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Vincenzo Librandi, Table of n, a(n) for n = 1..9`
	MATHEMATICA	`Select[2*5^Range[0, 500] + 1, PrimeQ]`
	CROSSREFS	`Cf. A058934` `Sequence in context: A165946 A253639 A112357 * A097423 A111130 A337415` `Adjacent sequences: A205768 A205769 A205770 * A205772 A205773 A205774`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Joseph Stephan Orlovsky, Jan 31 2012`
	STATUS	`approved`

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Last modified July 16 14:52 EDT 2021. Contains 346065 sequences. (Running on oeis4.)