A201265 Primes of the form 9n^3+4.

13, 1129, 19777, 44221, 109507, 140629, 268123, 455881, 715567, 820129, 2471629, 3796879, 4108801, 9272713, 12308683, 13687879, 15944053, 18435451, 25228993, 26317867, 27437629, 32234197, 41917171, 45001903, 49907101, 53367673, 73085413

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..3200

Mathematica

Select[Table[9n^3+4, {n, 0, 7000}], PrimeQ]

Prog

(Magma) [a: n in [0..400] | IsPrime(a) where a is 9*n^3+4]

Crossrefs

Sequence in context: A195890 A195520 A128897 * A221390 A226095 A220619

Adjacent sequences: A201262 A201263 A201264 * A201266 A201267 A201268

Keyword

nonn,easy

Author

Vincenzo Librandi, Nov 29 2011

Status

approved