A200814 Primes of the form 6*n^3-1.

5, 47, 383, 4373, 20249, 131711, 161999, 257249, 303917, 355913, 444527, 893261, 1111157, 1804577, 2057999, 2431343, 2958233, 3684749, 5821793, 6367247, 6945749, 7350257, 8657381, 8889263, 12290297, 16463999, 17179727, 17915903

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1700

Mathematica

Select[Table[6n^3-1, {n, 1, 8000}], PrimeQ]

Prog

(Magma) [a: n in [1..300] | IsPrime(a) where a is 6*n^3-1]

Crossrefs

Sequence in context: A327595 A353545 A198854 * A181582 A220558 A241372

Adjacent sequences: A200811 A200812 A200813 * A200815 A200816 A200817

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 23 2011

Status

approved