A201707 Primes of the form 9n^2 + 7.

7, 43, 151, 331, 907, 1303, 2311, 3607, 4363, 6091, 13003, 14407, 17431, 19051, 20743, 26251, 34603, 36871, 46663, 51991, 66571, 72907, 79531, 90007, 108907, 129607, 133963, 156823, 161611, 166471, 171403, 219031, 224683, 311371

Offset

1,1

Links

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

Mathematica

Select[Table[9n^2+7, {n, 0, 1000}], PrimeQ]

Prog

(Magma) [a: n in [0..300] | IsPrime(a) where a is 9*n^2+7];

Crossrefs

Sequence in context: A134154 A183537 A114352 * A365302 A255314 A166813

Adjacent sequences: A201704 A201705 A201706 * A201708 A201709 A201710

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 04 2011

Status

approved