The return of dupe hunting, pt. 1

[Andrew Plewe]

I see that now looking at these two sequences, but it's not obvious to 
me from their definitions or the wording that they're supposed to be 
different. Namely, I don't get why the cubes are absent from A022555 
while they're included in A057903.

    -Andrew Plewe-


Max Alekseyev wrote:
> On 9/20/07, Andrew Plewe <aplewe at sbcglobal.net> wrote:
>
>   
>> Straightforward duplicates:
>> ---------------------------
>> http://www.research.att.com/~njas/sequences/?q=id:A022555|id:A057903&fmt=1
>>     
>
> These are not duplicates. A022555 is a subsequence of A057903, but
> A057903 contains cubes that are not elements of A022555.
> In other words, A057903 = A022555 U A000578, except for 0 that would
> be an element of A057903 if it were defined as "Nonnegative
> integers...". Perhaps, it makes sense to modify A057903 this way.
>
>   
>