The below 6x6 Matrix is what is known as a Magick Square. It is so named because every row adds up to the same number, as do the diagonals. In this case each row of the Matrix totals up to 111, and if you add all of the nodes together they total 666. None of the nodes are duplicates either. They start at 1 and continue to 36.
Before computers this would be incredibly hard to do. I've been working with a Brazilian friend of mine who found a way to calculate arbitrarily large Magick Squares in micro seconds.
Check it out!
https://github.com/powercrypt/magicSquares/
35 01 06 26 19 24
03 32 07 21 23 25
31 09 02 22 27 20
08 28 33 17 10 15
30 05 34 12 14 16
04 36 29 13 18 11
Rows Total = 111
Matrix Sum = 666