A000621 G.F.: Conflicting Formulas

[Michele Dondi]

On Thu, 1 Dec 2005, Alexandre Wajnberg wrote:

> I wonder also if the first term makes sense chemically speaking, because an
> alkane with zero atom of carbon is not any more an alkane (except if the X
> is itself an alkane, but then it becomes another term of the same
> sequence...).

Well, as usual mathematically speaking, if the set of its carbon atoms is 
empty, then all of its members have any property you like. If a set of 
such properties give a sufficient condition for the former to be an 
alcane, it is!


Michele
-- 
DAX ODIA ANCORA
- Scritta su diversi muri milanesi