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.
Is this matrix orthogonal?
Volume and area of a sphere
Do you like your boss?
Find the hypotenuse
Flip the bit
Right and wrong
High school cafeteria
So many choices
The Hitchhiker's Guide to MATLAB
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