[R] "sequence of factor settings"?

[Christian Schulz]

Hi,

exist in any package a function which "work with sequences".

Easy example 10 factors with 2 levels, are if i'm
correct theoretical  2^10  "sequences" possible.

But i have more than 2 levels and perhaps more than 10 factors and 
interested for the top10 "sequence's"
with higehest freqs and wish to know which type of sequence it is.

Many thanks for a starting point
Christian