Check whether the input matrix is a figurate number triangle: http://mathworld.wolfram.com/FigurateNumberTriangle.html
you should probably add a test case where the correct answer is false.
I added a few more tests as suggested.
CONVERT TAN TO SIN
02 - Vector Variables 1
03 - Matrix Variables 4
So many choices
Flip the bit
Increment a number, given its digits
Is my wife right? Now with even more wrong husband
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