9x9x9 Magic Cube all sums = 369. I would imagine Tesla may have liked this one.

This 9x9x9 Magic Cube is 9 Magic Squares of 1 to 81 stacked to produce a 9x9x9 Magic Cube with Columns , Rows , and Diagonals having Sum values of 369. Layer 5 has the diagonals with sums of 369 also.
The average value of the cubic squares surrounding the center square is the value of the center square.
Magic Squares and Magic Cubes do not have a maximum size limitations.
An Excel Worksheet with the Layers Numbers and Validation are located on the following link.
img1.wsimg.com/blobby/go/8436...
More Information about This Magic Cube and Magic Squares in general is located on : themagicsquare.info/