A125661 Primes p such that p + next prime = 2^k for some k.

3, 61, 4093, 75557863725914323419121, 3064991081731777716716694054300618367237478244367204187

Offset: 1

Author

J. M. Bergot, Feb 02 2007

Keywords

• nonn

Comments

The next term is too large to include - see the b-file.

Examples

			3+5=8=2^3
61+67=128=2^7
		

Links

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

Crossrefs

Cf. A091624.

Programs

Mathematica

Select[Prime[Range[10^6]],Total[IntegerDigits[#+NextPrime[#],2]]==1&] (* James C. McMahon, Dec 19 2024 *)

Extensions

Corrected by N. J. A. Sloane, Feb 05 2007

Extended by Hans Havermann, Feb 05 2007