A173769 Primes in A154117.

2, 7, 17, 37, 157, 317, 1277, 2557, 20477, 655357, 5242877, 671088637, 2684354557, 5368709117, 343597383677, 23058430092136939517, 23611832414348226068477, 48357032784585166988247037, 830767497365572420564879412675215357

Offset

1,1

Comments

Apart from the first term, the same as A172156. - R. J. Mathar, Mar 17 2010

Primes of the form 5*2^n-3.

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..38

Mathematica

 Select[Table[5*2^n-3, {n, 0, 300}], PrimeQ] (* Vincenzo Librandi, Jul 26 2012 *)

Prog

(Magma) [ a: n in [0..150] | IsPrime(a) where a is 5*2^n-3 ];

Crossrefs

Sequence in context: A086321 A009302 A154117 * A067038 A209398 A364756

Adjacent sequences: A173766 A173767 A173768 * A173770 A173771 A173772

Keyword

nonn,easy

Author

Vincenzo Librandi, Mar 05 2010

Extensions

Edited by N. J. A. Sloane, Mar 17 2010

Status

approved