%I #11 Aug 04 2019 04:41:33

%S 24,1036,104824

%N Numbers k such that 5^k + k^5 is prime.

%C a(4) > 125000.

%Y Cf. A001593, A114973, A309422.

%K nonn,bref,more,hard

%O 1,1

%A _Hugo Pfoertner_, Jul 30 2019