A076432 Perfect powers for which the three closest perfect powers are smaller.

36, 144, 2209, 6436369, 312079766881, 328081510656, 11305787558464, 62854912315881, 79723540870416, 4550858480922601, 11435943732416784, 3109406220195722500, 6258210474706101136, 7596357574791306304, 21016258678615763761, 32645304184825666489

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Example

The three closest perfect powers to 36 are 32 (difference = 4), 27 (difference = 9) and 25 (difference = 11). The fourth closest is 49 (difference = 13). 32, 27 and 25 are smaller than 36, so 36 is in the sequence.

Crossrefs

Cf. A001597, A053289, A075772, A076431, A076433.

Sequence in context: A162992 A037072 A370453 * A003848 A203753 A039495

Adjacent sequences: A076429 A076430 A076431 * A076433 A076434 A076435

Keyword

nonn

Author

Neil Fernandez, Oct 10 2002

Extensions

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

a(5)-a(10) from Donovan Johnson, Sep 03 2008

a(11)-a(16) from Donovan Johnson, Aug 01 2013

Status

approved