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.
Specific Element Count
Are all the three given point in the same line?
Return 'on' or 'off'
Basic arrays operations.
Factorize THIS, buddy
Tune your guitar
Right and wrong
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