Sequence & Its Terms' Differences

[Leroy Quet]

Ooops.

I wrote:
>....
>For m >= 2,
>a(m) = lowest positive integer not in {a(1),a(2),...,a(m-1)} such that
>|a(m) -a(m-1)| is a positive integer not in 
>{|a(2)-a(1)|,|a(3)-a(2)|,...,|a(m-1)-a(m-2)|}.
>
>....

....
|a(m) -a(m-1)| is the LOWEST positive integer not in 
{|a(2)-a(1)|,|a(3)-a(2)|,...,|a(m-1)-a(m-2)|}.


Thanks,
Leroy Quet