A100105 a(n) = 2^prime(n)-prime(n).

2, 5, 27, 121, 2037, 8179, 131055, 524269, 8388585, 536870883, 2147483617, 137438953435, 2199023255511, 8796093022165, 140737488355281, 9007199254740939, 576460752303423429, 2305843009213693891

Offset

1,1

Links

N. J. A. Sloane, Table of n, a(n) for n = 1..100

Maple

seq( (2^ithprime(x)-ithprime(x)), x=1..20);

Mathematica

f[n_]:=(2^Prime[n]-Prime[n]); Array[f, 4!, 1] (* Vladimir Joseph Stephan Orlovsky, Oct 17 2009 *)

Prog

(Magma) [2^p - p: p in PrimesUpTo(80)]; // Vincenzo Librandi, Jun 03 2014

Crossrefs

Cf. A001348, A034785.

Sequence in context: A090744 A041571 A042259 * A087130 A265266 A097565

Adjacent sequences: A100102 A100103 A100104 * A100106 A100107 A100108

Keyword

nonn

Author

Jorge Coveiro, Dec 26 2004

Status

approved