A200729 - OEIS

%I #22 Jul 17 2017 02:28:05

%S 4,8,216,2116,551368,47444544,17649109134656

%N Smallest nontrivial positive power x such that the number of even powers (i.e., even base) not exceeding x exceeds by n the number of odd powers not exceeding x.

%C A nontrivial power is a^b where a,b are integers and b>1.

%e a(2)=216 because there are 11 even powers not larger than 216 and 9 odd powers not larger than 216, and 9 - 7 = 2.

%Y Cf. A200730.

%K nonn,more

%O 0,1

%A _Graeme McRae_, Nov 21 2011