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.
Hamming Weight - Size Scoring
Television Screen Dimensions
Two-output anonymous function?
Flexible Anonymous Function
Evaluate the zeta function for complex arguments
Solve the Challenger puzzle
Find the last non-zero digit in a primorial
Compute the perimeter of an ellipse
Evaluate the Struve function
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