A180924 - OEIS

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A180924

Numbers n such that 12321*2^n + 1 is prime.

4, 24, 29, 47, 61, 63, 67, 69, 87, 101, 129, 143, 153, 249, 252, 333, 408, 561, 616, 732, 929, 1349, 3467, 6156, 6919, 9244, 14413, 17128, 20059, 20169, 20512, 23479, 24076, 26208, 27189 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..35.`
	PROG	`(PARI) is(n)=ispseudoprime(12321<<n+1) \\ Charles R Greathouse IV, Jun 13 2017`
	CROSSREFS	`Sequence in context: A137980 A144137 A238222 * A176900 A166727 A229295` `Adjacent sequences: A180921 A180922 A180923 * A180925 A180926 A180927`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls, Sep 25 2010`
	STATUS	`approved`

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Last modified January 20 04:53 EST 2021. Contains 340301 sequences. (Running on oeis4.)