id:A049409 - OEIS Search Results

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Numbers n such that n^4+n^3+n^2+n+1 is prime.

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1, 2, 7, 12, 13, 17, 22, 23, 24, 28, 29, 30, 40, 43, 44, 50, 62, 63, 68, 73, 74, 77, 79, 83, 85, 94, 99, 110, 117, 118, 120, 122, 127, 129, 134, 143, 145, 154, 162, 164, 165, 172, 175, 177, 193, 198, 204, 208, 222, 227, 239, 249, 254, 255, 260 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n = 1..1000`
	MATHEMATICA	`lst={}; Do[p=n^0+n^1+n^2+n^3+n^4; If[PrimeQ[p], AppendTo[lst, n]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 10 2009]`
	CROSSREFS	`Sequence in context: A064441 A110949 A126343 this_sequence A006143 A160455 A045929` `Adjacent sequences: A049406 A049407 A049408 this_sequence A049410 A049411 A049412`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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