test 8 is not a symmetric matrix, is it a projector matrix?
Sorry about that one. I've removed that test case. I don't know how long it will take for the re-scoring to propagate, though.
Sum of odd numbers in a matrix
Binary code (array)
factorial of a number x
Mechanical Advantage of a Gear Train
Divisible by n, Truncated-number Divisors
Scrabble Scores - 7
Rule of mixtures (composites) - either bound
Divisible by 8
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