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.
Make a Palindrome Number
Implement a ROT13 cipher
Bottles of beer
Make a simplified barcode
Getting the absolute index from a matrix
Increment a number, given its digits
The Hitchhiker's Guide to MATLAB
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