A076433 Perfect powers for which the two closest perfect powers are greater.

25, 121, 2187, 6431296, 6434856, 6956883693, 27027009001, 34359738368, 42618264157, 312078649600, 312079600999, 328080365089, 11305780833649, 11305786504384, 19287643015432, 62854896459664, 79723523012809

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Example

The two closest perfect powers to 25 are 27 (difference = 2) and 32 (difference = 7). The third closest is 16 (difference = 9). Both 27 and 32 are greater than 25, so 25 is in the list.

Crossrefs

Cf. A001597, A053289, A075772, A076431, A076432.

Sequence in context: A141722 A090159 A025283 * A069668 A274785 A214114

Adjacent sequences: A076430 A076431 A076432 * A076434 A076435 A076436

Keyword

nonn

Author

Neil Fernandez, Oct 10 2002

Extensions

More terms from Jud McCranie and Robert G. Wilson v, Oct 11 2002

a(6)-a(17) from Donovan Johnson, Sep 03 2008

Status

approved