A200729 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.

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

Offset

0,1

Comments

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

Links

Table of n, a(n) for n=0..6.

Example

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.

Crossrefs

Cf. A200730.

Sequence in context: A120822 A013065 A013096 * A116092 A085631 A074073

Adjacent sequences: A200726 A200727 A200728 * A200730 A200731 A200732

Keyword

nonn,more

Author

Graeme McRae, Nov 21 2011

Status

approved