

A173852


Primes of the form 10^n  2^n  1.


2




OFFSET

1,1


COMMENTS

The next term is too large to display here.


LINKS



MATHEMATICA



PROG

(Magma) /* The code gives only the terms up to a(5): */ [a: n in [0..200]  IsPrime(a) where a is 10^n2^n1]; // Vincenzo Librandi, Jul 26 2012


CROSSREFS



KEYWORD

nonn,hard


AUTHOR



STATUS

approved



