Question 662336
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Starting with 0 in the upper left corner, enter the numbers in order, left to right, going back to the left of the next row each time you have entered the last number in a row.


Swap the 15 and the 0.  Swap the 5 and the 10.  Swap the 6 and the 9.  Swap the 3 and the 12.  Done.


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  0   1   2   3
  4   5   6   7
  8   9  10  11
 12  13  14  15


 15   1   2  12
  4  10   9   7
  8   6   5  11
  3  13  14   0

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Magic constant is 30. Note that the 4 corners add up to 30 as well as each group of 4 in the four corners and the group of 4 in the center.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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