A200729 - OEIS

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

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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