[seqfan] Re: more on double factorials/Penson

[N. J. A. Sloane]

I have been aware of the multiple definitions of double factorial
for the whole time the database has existed, and I'm not worried 
if Maple disagrees with the OEIS.  I don't propose to make any changes.

(More generally, I think Maple has had a very bad influence
on mathematical notation - allowing horrors like A/B/C/D....
If the OEIS and Maple disagree, so much the better!)

Neil