A201848 Primes of the form 7n^2 - 2.

5, 61, 173, 1181, 3701, 4373, 5101, 7621, 8573, 12941, 14173, 15461, 19661, 22741, 29573, 39373, 48221, 52981, 80141, 89381, 112901, 123821, 131381, 143141, 163861, 172541, 190573, 214373, 219301, 244781, 288461, 299941, 354373

Offset

1,1

Links

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

Mathematica

Select[Table[7n^2-2, {n, 1, 1000}], PrimeQ]

Prog

(Magma) [a: n in [1..400] | IsPrime(a) where a is 7*n^2-2];

Crossrefs

Sequence in context: A321616 A182352 A142643 * A087871 A242194 A046976

Adjacent sequences: A201845 A201846 A201847 * A201849 A201850 A201851

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 06 2011

Status

approved