A155848 Primes of the form 2^p-p*q where p is prime, q=9.

-19, -13, 1949, 2535301200456458802993406409843

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Jan 28 2009

Keywords

• sign

Crossrefs

Cf. A057664, A155841, A155842, A155843, A155844, A057678, A155845, A155846, A155847.

Programs

Mathematica

q=9;lst={};Do[p=Prime[n];If[PrimeQ[p=2^p-p*q],AppendTo[lst,p]],{n,5!}];lst
Select[2^#-9#&/@Prime[Range[50]],PrimeQ] (* Harvey P. Dale, Aug 26 2014 *)