Panmagic square
From Free net encyclopedia
A panmagic square of order n is a magic square with the additional requirement that not only the n rows and the n columns, but also the 2n broken diagonals sum to the same magic constant.
3 | 10 | 15 | 6 |
13 | 8 | 1 | 12 |
2 | 11 | 14 | 7 |
16 | 5 | 4 | 9 |
The magic constant of this panmagic square is 34. The broken diagonals (such as 10+1+7+16 and 10+13+7+4) all sum correctly.
fr:Carré panmagique