A173872 Primes of the form 12*2^n - 11.

13, 37, 181, 373, 757, 3061, 6133, 12277, 196597, 1572853, 25165813, 805306357, 3221225461, 6442450933, 12884901877, 26388279066613, 3377699720527861, 1813388729421943762059253

Offset: 1

Author

Vincenzo Librandi, Mar 05 2010

Keywords

• nonn

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..33

Crossrefs

Cf. A139697

Programs

Maple

select(isprime,[seq(12*2^n-11,n=1..1000)]); # Robert Israel, Aug 20 2014

Mathematica

Select[NestList[2#+11&,13,80],PrimeQ] (* Harvey P. Dale, Jun 18 2013 *)