[seqfan] Re: A062682

israel at math.ubc.ca israel at math.ubc.ca
Fri Nov 16 22:22:08 CET 2012


Oops, somehow I missed that one.  Sorry.
On the other hand, 55454525 = 221^3 + ... + 225^3 = 77^3 + ... + 126^3
should be included.

Robert Israel
University of British Columbia


On Nov 16 2012, D. S. McNeil wrote:

>> The data given include 77053284, which I think I
>> can prove is the sum of consecutive positive
>> cubes in only one way (144^3 + ... + 164^3).
>
>I think I can prove otherwise. :^)
>
>sage: sum(i^3 for i in [1..132]) == 77053284
>True
>sage: sum(i^3 for i in [144..164]) == 77053284
>True
>
>
>Doug
>
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