id:A154111 - OEIS Search Results

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Numbers n such that (n+1)^2-n^3 is prime.

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1, 3, 5, 6, 8, 11, 12, 15, 18, 20, 27, 33, 35, 39, 41, 45, 48, 50, 54, 65, 66, 68, 86, 87, 92, 96, 99, 107, 116, 122, 123, 126, 138, 140, 149, 150, 156, 159, 161, 164, 165, 167, 170, 177, 182, 185, 188, 191, 192, 198, 200, 207, 209, 219, 228, 237, 239, 240, 242, 252 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`a[n_]:=(n+1)^2-n^3; lst={}; Do[If[PrimeQ[a[n]], AppendTo[lst, n]], {n, 6!}]; lst`
	CROSSREFS	`Cf. A140719, A005097` `Sequence in context: A014254 A131422 A087720 this_sequence A047444 A160734 A121501` `Adjacent sequences: A154108 A154109 A154110 this_sequence A154112 A154113 A154114`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 04 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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