how to make a generator use the last yielded value when it regains control

[John Salerno]

Lonnie Princehouse wrote:
> Here's my take on the thing.  It only prints one term, though.
> 
>   http://www.magicpeacefarm.com/lonnie/code/morris.py.html
>   
>   (a bit too long to post)
> 

yikes, scary! :)

there was always the hint that using itertools might be helpful, as you 
guys are doing, but i could never quite figure out how, but looking at 
these alternate methods is definitely helpful