The test case result for n=5 seems a tad high.
Tim, that last case is altperm(altperm(5)). I did that to discourage lookup solutions.
The Hitchhiker's Guide to MATLAB
The Tower of Hanoi
Mysterious digits operation (easy)
Integer or Float?
find nth even fibonacci number
Characterize the final state of the digit inventory sequence
Count numbers whose reciprocals' decimal expansions terminate
Count unique orderings of vertices of a polygon
Determine the Zeckendorf expansion of a number
Compute the nth Pythagorean prime
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