A201485 Primes of the form 5n^2 + 7.

7, 727, 1627, 2887, 4507, 11527, 21787, 30427, 40507, 52027, 103687, 112507, 121687, 162007, 172987, 273787, 288007, 302587, 348487, 468187, 648007, 669787, 737287, 784087, 832327, 959227, 1012507, 1180987, 1240027, 1393927, 1523527

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Mathematica

Select[Table[5n^2+7, {n, 0, 2000}], PrimeQ]

Prog

(Magma) [a: n in [0..700] | IsPrime(a) where a is 5*n^2+7];

Crossrefs

Sequence in context: A098110 A062334 A222727 * A083978 A162138 A067448

Adjacent sequences: A201482 A201483 A201484 * A201486 A201487 A201488

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 02 2011

Status

approved