Semi-Magic Squares and Elliptic Curves.

Authors: Edray Herber Goins
Subjects: Number Theory
link: http://arxiv.org/abs/0910.0049
Abstract

We show that, for all odd natural numbers $N$, the $N$-torsion points on an
elliptic curve may be placed in an $N \times N$ grid such that the sum of each
column and each row is the point at infinity.