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.
Tic Tac Toe FTW
Read a column of numbers and interpolate missing data
Is my wife right? Now with even more wrong husband
middleAsColumn: Return all but first and last element as a column vector
How many monitors are connected ?
Are you in or are you out?
Sum my indices
So many choices
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