terms lack

[Brendan McKay]

* Dean Hickerson <dean at math.ucdavis.edu> [061106 20:40]:
> The terms that are listed in a sequence should be the start of the sequence.
> If there are missing terms in between the listed ones, then the sequence
> entry is not just incomplete, it's wrong.
> 
> If you've computed some terms of a sequence, but you're not sure if there
> are smaller ones that you've missed, then you should only include the ones
> that you're sure are at the start of the sequence.  You can add a comment
> about the larger terms, stating that it's not known if there are smaller ones.
> For example, the "EXTENSIONS" lines for the sequence A000043 (Mersenne
> exponents) mention some recently discovered terms.  But there might be
> some smaller ones, so these are not included in the sequence.
 
Is there an official rule about this?  I'm not sure it is correct.
Of course we should not submit sequences with possible gaps, but
suppose we can compute a(10) thru a(20) but have trouble with
a(1) thru a(9).  I don't see why we can't submit a(10..20) with
an OFFSET of 10 and a comment explaining why a(1..9) are absent.

Brendan.