AA, thanks for carrying the torch so often.
No idea if the 'skips' or 'ghost values' in sequences are similar to these 'gaps', which could be non-integral grid-points? They may still be rational, such as 1/3. Tried to describe a bit, a (me):
>>9089 (pb)
>What about those 'ghost' values?
> - they are 'non-integral' n-values. Note that if these were included x_base is a simple sequence increasing by 2 for each k.
> - there is likely a hidden part of the grid that can be used to traverse with these, haven't gone there yet. Diff 2 is constant, so a Second Order series.
V-Helper anon, thanks for the crumbs.
Have to head out to sea for a short bit again, but will print these recent bits to digest.
Topo, PMA, Hobo, et al - be well.