

A057736


Primes p such that 2^p + 3 is prime.


4




OFFSET

1,1


COMMENTS

The next term p is greater than 100000, corresponding to a prime 2^p + 3 with more than 30000 digits.  Ryan Propper, Aug 24 2005


REFERENCES

J.M. De Koninck, Ces nombres qui nous fascinent, Entry 67, p. 24, Ellipses, Paris 2008.


LINKS

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


CROSSREFS

Sequence in context: A087358 A255357 A270002 * A181263 A130309 A090870
Adjacent sequences: A057733 A057734 A057735 * A057737 A057738 A057739


KEYWORD

more,nonn


AUTHOR

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


STATUS

approved



