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

5, 13, 173, 2111, 665773, 3142394278117397493736691789093238367784438314557856426157

Offset

1,1

Comments

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

Links

Table of n, a(n) for n=1..6.

Mathematica

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

Crossrefs

Sequence in context: A336097 A187894 A214591 * A117077 A124924 A209271

Adjacent sequences: A159258 A159259 A159260 * A159262 A159263 A159264

Keyword

nonn

Author

T. D. Noe, Apr 07 2009

Status

approved