１ 双偶阶等差数列幻方新填法与证明 定义 设ｎ为不小于３的整数，由公差不为０的等差数列前ｎ２项构成的ｎ阶方阵，若每行、每列、主对角线、副对角线上诸元素之和为常数Ｓｎ，则称此方阵为ｎ阶等差数列幻方，Ｓｎ称为幻方值． 若ｎ＝４ｋ（ｋ ∈ Ｎ），称其为双偶阶幻方；ｎ 1 The double-even-order arithmetic series magic square new filling method and proof-of-concept setting n is an integer not less than 3, an n-order square matrix composed of the first n2 terms of the arithmetic error sequence whose tolerance is not 0, if each row, each column, The sum of the elements on the main diagonal and the subdiagonal is a constant Sn, then this square matrix is ​​called an n-order arithmetic series magic square, and Sn is called a magic square value. If n=4k(k ∈ N), call it a double-even magic square; n