A201475 Primes of the form 2n^2 + 7.

7, 79, 457, 3049, 4057, 5209, 5839, 7207, 8719, 11257, 18439, 19609, 25999, 28807, 33289, 36457, 39769, 41479, 45007, 48679, 80809, 93319, 95929, 109519, 121039, 130057, 145807, 155689, 162457, 169369, 180007, 209959, 229849, 272329

Offset

1,1

Links

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

Mathematica

Select[Table[2n^2+7, {n, 0, 900}], PrimeQ]

Prog

(Magma) [a: n in [0..400] | IsPrime(a) where a is 2*n^2+7];

Crossrefs

Sequence in context: A014232 A154592 A075896 * A079911 A003545 A104094

Adjacent sequences: A201472 A201473 A201474 * A201476 A201477 A201478

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 02 2011

Status

approved