Associative Magic Square
An 
Magic Square for which every pair of numbers symmetrically opposite the center sum to 
. TheLo Shu is associative but not Panmagic. Order four squares can be Panmagic or associative, but not both. Order five squares are the smallest which can be both associative andPanmagic, and 16 distinct associative Panmagic Squares exist, one of whichis illustrated above (Gardner 1988).
References
Gardner, M. ``Magic Squares and Cubes.'' Ch. 17 in Time Travel and Other Mathematical Bewilderments. New York: W. H. Freeman, 1988.
- Kinoshita-Terasaka Mutants
- Kirby Calculus
- Kirby's List
- Kirkman's Schoolgirl Problem
- Kirkman Triple System
- Kissing Circles Problem
- Kissing Number
- Kiss Surface
- Kite
- Klarner-Rado Sequence
- Klarner's Theorem
- Klein-Beltrami Model
- Klein Bottle
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- Klein-Gordon Equation
- Kleinian Group
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- Klein's Equation
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- Kloosterman's Sum
- k-Matrix
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