Hi,
>> I need for the purpose of my research fast iterator through
>> set-partitions of a set, let say
>
> Yipee! It's great that someone is taking up this task which has been
> on the TODO list for a while. Please create a ticket, and mention it
> on:
>
> http://trac.sagemath.org/sage_trac
Hi Eviatar and Nicolas,
> Speaking of which, one question for the sage-word people: should De
> Bruijn sequences be output as Words?
I believe so. Well, if we want to get things similar together. Many
infinite sequences have already been implemented. They are available
here (or in sage/combinat/w