Derangements | Example Notebook

In the following two lists, no element appears in its original place:

In[466]:=

[◼]	Derangements

@3

Out[466]=

{{2,3,1},{3,1,2}}

———

Here is the next case, condensed:

In[469]:=

Row/@

[◼]	Derangements

@4

Out[469]=

{2143,2341,2413,3142,3412,3421,4123,4312,4321}