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.
Connect Four Win Checker
Project Euler: Problem 10, Sum of Primes
Convert hex color specification to MATLAB RGB
Output any real number that is neither positive nor negative
So many choices
Is my wife right? Now with even more wrong husband
Cull vector elements that contain a specified digit
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