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%I #15 Feb 14 2015 21:06:44
%S 5,307,33191,321193,18889465931478650198741,
%T 401734511064747568885490523085290650630550748445707718725843
%N Primes of the form n^5 + 4^n.
%H Charles R Greathouse IV, <a href="/A075983/b075983.txt">Table of n, a(n) for n = 1..7</a>
%t Select[Table[n^5+4^n,{n,500}],PrimeQ] (* _Harvey P. Dale_, Mar 31 2012 *)
%o (PARI) k=0; for(n=1,20,k=k+1; while(!isprime(k^5+4^k),k++); print1(k^5+4^k","))
%K nonn
%O 1,1
%A _Zak Seidov_, Oct 17 2002
%E Next term has 193 digits.
%E More terms from _Ralf Stephan_, Mar 30 2003
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