Antimagic Square
An antimagic square is an 
Array of integers from 1 to 
such that each row, column, and main diagonal producesa different sum such that these sums form a Sequence of consecutive integers. It is therefore a special case of aHeterosquare.
Antimagic squares of orders one and two are impossible, and it is believed that there are also no antimagic squares of order three.There are 18 families of antimagic squares of order four. Antimagic squares of orders 4-9 are illustrated above (Madachy 1979).
See also Heterosquare, Magic Square, Talisman Square
References
Abe, G. ``Unsolved Problems on Magic Squares.'' Disc. Math. 127, 3-13, 1994. Madachy, J. S. ``Magic and Antimagic Squares.'' Ch. 4 in Madachy's Mathematical Recreations. New York: Dover, pp. 103-113, 1979.
Weisstein, E. W. ``Magic Squares.'' Mathematica notebook MagicSquares.m.
- Tetrakis Hexahedron
- Tetranacci Number
- Tetrix
- Tetromino
- Thales' Theorem
- Theorem
- Theorema Egregium
- Theta Function
- Theta Operator
- Theta Subgroup
- Thiele's Interpolation Formula
- Thiessen Polytope
- Third Curvature
- Thirteenth
- Thomae's Theorem
- Thomassen Graph
- Thompson Group
- Thompson's Functions
- Thom's Eggs
- Collineation
- Cologarithm
- Colon Product
- Colorable
- Coloring
- Columbian Number