Let n be an integer.
Arrange the first n^2 odd numbers in a square n on a side, left-to-right and top-to-bottom, like so (n=3):
1 3 5
7 9 11
13 15 17
Regardless of what n you chose, the following will be true:
The sum of the first row is n^2
The sum of either diagonal (from one corner to the other) is n^3
The sum of all the numbers in the square is n^4
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