A168669 Numbers n such that sqrt(36*n+49) is prime.

0, 2, 22, 50, 60, 102, 172, 190, 260, 282, 520, 632, 830, 1012, 1380, 1430, 1612, 1920, 2130, 2192, 2720, 2790, 3042, 3382, 3460, 3740, 4202, 4922, 5352, 5450, 5800, 5902, 6372, 8310, 8992, 9570, 10032, 10642, 11412, 12062, 12580, 12730, 13262, 13962

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Example

For n=0, p=7; n=2, p=11; n=22, p=29

Mathematica

Select[Range[0, 15000], PrimeQ[Sqrt[36 # + 49]]&] (* Vincenzo Librandi, Apr 05 2013 *)

Crossrefs

Sequence in context: A200946 A322157 A156454 * A271883 A152995 A273366

Adjacent sequences: A168666 A168667 A168668 * A168670 A168671 A168672

Keyword

nonn,easy

Author

Vincenzo Librandi, Dec 02 2009

Extensions

Definition clarified by N. J. A. Sloane, Jun 18 2010.

Status

approved