Hello,

I would like to know how to obtain the cardinality of a set of partitions for the given cardinality of another set. For example, given a set of 4 elements, I obtain the following set of 5 partitions with their subset cardinalities ranging over indices from 1 to 4:0 0 0 1I'd like to know the name of this set too. Thank you in advance for your help.

0 2 0 0

1 0 1 0

2 1 0 0

4 0 0 0