%I #9 Aug 26 2015 23:38:40
%S 3,17,368,18785,48989176,13065520825,232630924325880,
%T 144115205059418913,8862938121453653757392,
%U 100000000000000420707233300201,191943424957750505912623737696642,8505622499821102144582714636120669969873,4695452425098908797088972334440524350089758134
%N a(n) = p^n + n^p where p = prime(n).
%e a(1) = 2^1 + 1^2 = 3.
%e a(2) = 3^2 + 2^3 = 17.
%e a(3) = 5^3 + 3^5 = 368.
%p a:= n-> (p-> p^n+n^p)(ithprime(n)):
%p seq(a(n), n=1..15); # _Alois P. Heinz_, Aug 26 2015
%t Table[n^Prime[n] + Prime[n]^n, {n, 1, 15}] (* _Stefan Steinerberger_, Feb 28 2006 *)
%K nonn
%O 1,1
%A _Parthasarathy Nambi_, Sep 27 2004
%E More terms from _Stefan Steinerberger_, Feb 28 2006