

A057737


Primes of the form 2^p + 3, where p is prime.


0




OFFSET

1,1


COMMENTS

The next term in the sequence is larger than 2^2741+3 > 10^825.  Philip Sung (philip_sung(AT)hotmail.com), Feb 02 2003
The next term in the sequence is larger than 2^100003+3 > 10^30104.  after Ryan Propper, Aug 24 2005


LINKS

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


FORMULA

a(n) = 2^A057736(n) + 3.  Felix Fröhlich, Aug 09 2019


MATHEMATICA

Select[Table[2^p+3, {p, Prime[Range[67]]}], PrimeQ] (* Metin Sariyar, Aug 09 2019 *)


PROG

(PARI) forprime(p=1, , my(x=2^p+3); if(ispseudoprime(x), print1(x, ", "))) \\ Felix Fröhlich, Aug 09 2019


CROSSREFS

Cf. A057736.
Sequence in context: A107187 A132958 A241189 * A130704 A038543 A145953
Adjacent sequences: A057734 A057735 A057736 * A057738 A057739 A057740


KEYWORD

nonn


AUTHOR

G. L. Honaker, Jr., Oct 29 2000


STATUS

approved



