A159261 Primes of the form 1 + sum_{i=1..n} 2^prime[i] for some n.

5, 13, 173, 2111, 665773, 3142394278117397493736691789093238367784438314557856426157

Offset: 1

Author

T. D. Noe, Apr 07 2009

Keywords

• nonn

Comments

Primes whose binary representation has the 0 and prime bits set up to prime(n). The values of n are in A159260.

Programs

Mathematica

s=1; Reap[Do[s=s+2^Prime[n]; If[PrimeQ[s], Sow[s]], {n,50}]][[2,1]]