id:A085150 - OEIS Search Results

Search: id:A085150

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Numbers n such that n!!!!!!+1 is prime.

+0
6

0, 1, 2, 4, 6, 8, 10, 12, 16, 18, 20, 22, 28, 40, 42, 44, 52, 66, 68, 78, 80, 92, 100, 102, 106, 210, 214, 232, 534, 676, 772, 822, 964, 1020, 1184, 1498, 2304, 2348, 7738, 9488, 11250, 12760, 12798, 25336, 27728, 35242, 41730, 46576, 55458, 73908, 94412 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`The search for multifactorial primes started by Ray Ballinger` `is now continued by a team of volunteers on the website of Ken Davis (see link).`
	LINKS	`Ken Davis, Status of Search for Multifactorial Primes.` `Ken Davis, Results for n!6+1.`
	CROSSREFS	`Cf. A085158 (sextuple factorials), A051592.` `Sequence in context: A076450 A097379 A114871 this_sequence A051178 A093891 A151999` `Adjacent sequences: A085147 A085148 A085149 this_sequence A085151 A085152 A085153`
	KEYWORD	`hard,nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 23 2003`
	EXTENSIONS	`More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), Aug 17 2004` `Corrected and extended by Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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