Bell number

[Edwin Clark]

On Fri, 25 Apr 2003, Hans Havermann wrote:

> 
> How come the figures for 1 and 54 are excluded? See:
> 
> http://spectacle.berkeley.edu/~fiorillo/7genjimon.html



And why is figure 1 in the fiorillo list the same as figure 35 in the list
at 

   http://plaza27.mbn.or.jp/~921/kumiko/genjiko/genjikou.html

I see why the figure label 54 in the fiorillo list is not counted
--since it has sticks joined at the top as well as at the bottom--so
doesn't correspond to a partition of {1,2,3,4,5} in the way the others do.

Edwin