A108420 - OEIS

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A108420

Numbers n such that n!! + prime(n) is prime.

3, 14, 20, 54, 56, 144, 206, 212, 436, 1610, 4450, 4512, 5202, 6684 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`There is no further term up to 8800. - Farideh Firoozbakht, Aug 19 2005`
	LINKS	`Table of n, a(n) for n=1..14.`
	MATHEMATICA	`Select[Range[1610], PrimeQ[ #!! - Prime[ # ]] &]`
	CROSSREFS	`Cf. A007749, A064401.` `Sequence in context: A063633 A108933 A271384 * A015639 A019000 A305090` `Adjacent sequences: A108417 A108418 A108419 * A108421 A108422 A108423`
	KEYWORD	`nonn`
	AUTHOR	`Amineh Farzannia (afarzannia(AT)yahoo.com), Jul 06 2005`
	EXTENSIONS	`More terms from Farideh Firoozbakht, Aug 19 2005`
	STATUS	`approved`

Last modified April 19 20:37 EDT 2021. Contains 343117 sequences. (Running on oeis4.)