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A057664 Primes of the form p + 2^p where p is prime. 14
11, 37, 618970019642690137449562201, 266998379490113760299377713271194014325338065294581596243380200977777465722580068752870260867389 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term has 212 digits. - Harvey P. Dale, Feb 19 2018

LINKS

Table of n, a(n) for n=1..4.

MATHEMATICA

lst={}; Do[p=Prime[n]; If[PrimeQ[p=p+2^p], AppendTo[lst, p]], {n, 5!}]; lst (* Vladimir Joseph Stephan Orlovsky, Jan 28 2009 *)

Select[#+2^#&/@Prime[Range[100]], PrimeQ] (* Harvey P. Dale, Feb 19 2018 *)

CROSSREFS

Cf. A057663, A057665.

Sequence in context: A162929 A116059 A100842 * A279770 A071853 A072313

Adjacent sequences:  A057661 A057662 A057663 * A057665 A057666 A057667

KEYWORD

nonn

AUTHOR

Labos Elemer, Oct 16 2000

STATUS

approved

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Last modified January 16 21:37 EST 2019. Contains 319206 sequences. (Running on oeis4.)