[seqfan] Re: n^3 - (largest square < n^3)

franktaw at netscape.net franktaw at netscape.net
Tue Jan 6 00:12:32 CET 2009


In theory, one should be able to find this sort of match using a subseq
search.  However, when I search for:

subseq:2,4,7,11,13,19,20,26,28,35,39,40,45,47,49,53,55

I just get taken back to the search screen.  Searching for:

subseq:2,4,7,11,13,19,20,26,28,35,39,40,45,47,49

works, but there are 337 matches -- too many to look through.

(I can search for:

subseq:2,4,7,11,13,19,20,26,28,35,39,40,45,47,49 square

which gives a manageable 12 matches.)

Franklin T. Adams-Watters

-----Original Message-----
From: Maximilian Hasler <maximilian.hasler at gmail.com>

See

A087285          Possible differences between a cube and the next 
smaller
square.
    2, 4, 7, 11, 13, 15, 19, 20, 26, 28, 35, 39, 40, 45, 47, 48, 49, 53,
...

Maximilian


On Mon, Jan 5, 2009 at 12:55 PM, zak seidov <zakseidov at yahoo.com> wrote:
> Dear seqfans,
>
> There are 158 possible non-zero values of difference
> [n^3 - (largest square < n^3)] less than 1000:
>
> 2, 4, 7, 11, 13, 19, 20, 26, 28, 35, 39, 40, 45, 47, 48, 49, 53, 55, 
56, 60,
...




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