id:A125881 - OEIS Search Results

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Numbers n for which n^3+n^2-1 is prime.

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15

2, 4, 5, 6, 9, 11, 12, 14, 19, 22, 25, 26, 27, 29, 32, 34, 36, 37, 40, 44, 47, 49, 55, 60, 62, 64, 65, 69, 70, 71, 81, 82, 84, 89, 95, 97 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Generating polynomial belongs to the family of irreducible polynomials (or trinomials) of the form x^n+x^(n-1)-1`
	MATHEMATICA	`Do[If[PrimeQ[x^3 + x^2 - 1], Print[x]], {x, 1, 100}]`
	CROSSREFS	`Cf. A045546, A125882-A125882.` `Sequence in context: A050011 A030303 A047315 this_sequence A089969 A166944 A073894` `Adjacent sequences: A125878 A125879 A125880 this_sequence A125882 A125883 A125884`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Dec 14 2006`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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