%I #5 Jan 11 2020 15:57:47
%S 16,27,256,3125,46656,823543,16777216,387420489,10000000000,
%T 285311670611,8916100448256,302875106592253,11112006825558016,
%U 437893890380859375,18446744073709551616,827240261886336764177,39346408075296537575424,1978419655660313589123979,104857600000000000000000000
%N Hyper-4 powers that are not hyper-5 powers.
%C A term is in this sequence if it is in A257309 but not in A257769.
%Y Cf. A257309, A257769.
%K nonn
%O 1,1
%A _Natan Arie Consigli_, Jul 08 2018