A200954 Primes of the form 7n^3-9.

47, 439, 6991, 28663, 74527, 447991, 596279, 1834999, 3859567, 5814079, 7874039, 8337103, 15378991, 20043007, 21784943, 24582647, 51109679, 55999991, 101687479, 163755583, 170722991, 233703727, 300124991, 337599799, 468463903

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Table[7n^3-9, {n, 2, 4000}], PrimeQ]

Prog

(Magma) [a: n in [2..500] | IsPrime(a) where a is 7*n^3-9]

Crossrefs

Sequence in context: A239539 A217119 A142454 * A126300 A012149 A106104

Adjacent sequences: A200951 A200952 A200953 * A200955 A200956 A200957

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 26 2011

Status

approved