m>n</em>!) in the lexicographic ordering of permutations.
</p>
<p>See also <code><a href="#perm_005flex_005frank">perm_lex_rank</a></code> and <code><a href="#perms_005flex">perms_lex</a></code>.
</p>
<p>Example:
</p>
<pre class="example">(%i1) load(&quot;combinatorics&quot;)$
(%i2) perm_lex_unrank (8, 18255);
(%o2)                [4, 6, 3, 1, 7, 5, 2, 8]
</pre>
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<p>Categories:&nbsp;&nbsp;<a href="maxima_107.html#Category_003a-Package-combinatorics">Package combinatorics</a>
</div>
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