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.
Implement a ROT13 cipher
Is my wife right?
Test if a Number is a Palindrome without using any String Operations
Arrange Vector in descending order
Is this triangle right-angled?
All your base are belong to us
Sum my indices
Is my wife right? Now with even more wrong husband
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