染雾二层六角幻方的n个有趣性质
The famous double hexagonal magic square problem is stated as follows. Put 19 natural numbers from 1 to 19 into the circles of Fig. 1 to make the sums of the numbers on each straight line equal.
作 者： 王晓玲 WANG Xiao-ling 作者单位： 刊 名： 辽宁师范大学学报（
