 2, 8]);
(%o2)                          18255
</pre>
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<p>Categories:&nbsp;&nbsp;<a href="maxima_107.html#Category_003a-Package-combinatorics">Package combinatorics</a>
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<dt><u>Function:</u> <b>perm_lex_unrank</b><i> (<var>n</var>, <var>i</var>)</i>
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<dd><p>Returns the <em>n</em>-degree permutation at position <var>i</var> (from 1 to
<e