A201261 Primes of the form n^3 + 7.

7, 71, 223, 5839, 13831, 46663, 64007, 262151, 287503, 438983, 830591, 884743, 1481551, 1643039, 2985991, 3375007, 5268031, 5639759, 5832007, 8998919, 11852359, 14886943, 15625007, 18399751, 19683007, 28652623, 29791007, 76225031, 77308783

Offset

1,1

Comments

Infinite under the Bateman-Horn-Stemmler conjecture. - Charles R Greathouse IV, Jul 13 2012

Old name was "Primes of the form 8*n^3 + 7".

Links

Vincenzo Librandi and Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Mathematica

Select[Table[n^3 + 7, {n, 0, 298, 2}], PrimeQ]

Prog

(Magma) [a: n in [0..300] | IsPrime(a) where a is 8*n^3+7];
(PARI) select(isprime, vector(1000, n, 8*(n-1)^3+7))  \\ Charles R Greathouse IV, Jul 13 2012

Crossrefs

Sequence in context: A142037 A087390 A142928 * A069634 A069619 A137443

Adjacent sequences: A201258 A201259 A201260 * A201262 A201263 A201264

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 29 2011

Extensions

Name simplified by Alex Ratushnyak, Apr 06 2013

Status

approved