4,3 立方幻方的编制
研究表明:n=2k (k>4)立方幻方是存在的。现给出A(I,J),B(I,J)正交对称拉丁方,可构成立方幻方。
4,
3, 1 A(I,J)正交对称拉丁方的编制4,3,1,1 A(1,J)第二象限首行数的分布方程:
k=1,2,3
…….n/32第一段:J=1,2,3
……n/8A1(1,J)=3
×n/8-2-4×(k-1) J=1+4×(k-1)A1(1,J)=n/2+1+4
×(k-1) J=2+4×(k-1)A1(1,J)=3
×n/4+3+4×(k-1) J=3+4×(k-1)A1(1,J)=n/8-4-4
×(k-1) J=4+4×(k-1)…..n/4第二段:J=n/8+1, n/8+2,
A1(1,j)=n-1-A1(1,J) j=n/4+1-J J=1,2,3
…..n/8……3×n/8.第三段:J=n/4+1, n/4+2, n/4+3
A2(1,J)=n/4-2-4
×(k-1) J=n/4+1+4×(k-1)A2(1,J)=7
×n/8+1+4×(k-1) J=n/4+2+4×(k-1)A2(1,J)=5
×n/8+3+4×(k-1) J=n/4+3+4×(k-1)A2(1,J)=n/2-4-4
×(k-1) J=n/4+4+4×(k-1)第四段:J=3
×n/8+1, 3×n/8+2, 3×n/8+3,…..n/2.A2(1,j)=n-1-A2(1,J) j=3
×n/4+1-J J=n/4+1, n/4+2,n/4+3…3×n/8. 例:由以上方程求得,n=64阶A(1,J)第二象限首行数的分布:|
J |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
|
A(1,J) |
22 |
33 |
51 |
4 |
18 |
37 |
55 |
0 |
63 |
8 |
26 |
45 |
59 |
12 |
30 |
41 |
|
J>n/4 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
|
A(1,J) |
14 |
57 |
43 |
28 |
10 |
61 |
47 |
24 |
39 |
16 |
2 |
53 |
35 |
20 |
6 |
49 |
根据 第二象限首行数的分布,可以作出第二象限数的分布(通过程序计祘)。见下图A1, A2。
n=26=64阶A(I,J) 第二象限(A1,A2),第一象限(A3,A4)数的分布:
1 2 15 16
|
22 |
33 |
51 |
4 |
18 |
37 |
55 |
0 |
63 |
8 |
26 |
45 |
59 |
12 |
30 |
41 |
|
23 |
32 |
50 |
5 |
19 |
36 |
54 |
1 |
62 |
9 |
27 |
44 |
58 |
13 |
31 |
40 |
|
20 |
35 |
49 |
6 |
16 |
39 |
53 |
2 |
61 |
10 |
24 |
47 |
57 |
14 |
28 |
43 |
|
21 |
34 |
48 |
7 |
17 |
38 |
52 |
3 |
60 |
11 |
25 |
46 |
56 |
15 |
29 |
42 |
|
14 |
57 |
43 |
28 |
10 |
61 |
47 |
24 |
39 |
16 |
2 |
53 |
35 |
20 |
6 |
49 |
|
15 |
56 |
42 |
29 |
11 |
60 |
46 |
25 |
38 |
17 |
3 |
52 |
34 |
21 |
7 |
48 |
|
12 |
59 |
41 |
30 |
8 |
63 |
45 |
26 |
37 |
18 |
0 |
55 |
33 |
22 |
4 |
51 |
|
13 |
58 |
40 |
31 |
9 |
62 |
44 |
27 |
36 |
19 |
1 |
54 |
32 |
23 |
5 |
50 |
|
18 |
37 |
55 |
0 |
22 |
33 |
51 |
4 |
59 |
12 |
30 |
41 |
63 |
8 |
26 |
45 |
|
19 |
36 |
54 |
1 |
23 |
32 |
50 |
5 |
58 |
13 |
31 |
40 |
62 |
9 |
27 |
44 |
|
16 |
39 |
53 |
2 |
20 |
35 |
49 |
6 |
57 |
14 |
28 |
43 |
61 |
10 |
24 |
47 |
|
17 |
38 |
52 |
3 |
21 |
34 |
48 |
7 |
56 |
15 |
29 |
42 |
60 |
11 |
25 |
46 |
|
10 |
61 |
47 |
24 |
14 |
57 |
43 |
28 |
35 |
20 |
6 |
49 |
39 |
16 |
2 |
53 |
|
11 |
60 |
46 |
25 |
15 |
56 |
42 |
29 |
34 |
21 |
7 |
48 |
38 |
17 |
3 |
52 |
|
8 |
63 |
45 |
26 |
12 |
59 |
41 |
30 |
33 |
22 |
4 |
51 |
37 |
18 |
0 |
55 |
|
9 |
62 |
44 |
27 |
13 |
58 |
40 |
31 |
32 |
23 |
5 |
50 |
36 |
19 |
1 |
54 |
第二象限 A1
17 18 31 32
|
14 |
57 |
43 |
28 |
10 |
61 |
47 |
24 |
39 |
16 |
2 |
53 |
35 |
20 |
6 |
49 |
|
15 |
56 |
42 |
29 |
11 |
60 |
46 |
25 |
38 |
17 |
3 |
52 |
34 |
21 |
7 |
48 |
|
12 |
59 |
41 |
30 |
8 |
63 |
45 |
26 |
37 |
18 |
0 |
55 |
33 |
22 |
4 |
51 |
|
13 |
58 |
40 |
31 |
9 |
62 |
44 |
27 |
36 |
19 |
1 |
54 |
32 |
23 |
5 |
50 |
|
22 |
33 |
51 |
4 |
18 |
37 |
55 |
0 |
63 |
8 |
26 |
45 |
59 |
12 |
30 |
41 |
|
23 |
32 |
50 |
5 |
19 |
36 |
54 |
1 |
62 |
9 |
27 |
44 |
58 |
13 |
31 |
40 |
|
20 |
35 |
49 |
6 |
16 |
39 |
53 |
2 |
61 |
10 |
24 |
47 |
57 |
14 |
28 |
43 |
|
21 |
34 |
48 |
7 |
17 |
38 |
52 |
3 |
60 |
11 |
25 |
46 |
56 |
15 |
29 |
42 |
|
10 |
61 |
47 |
24 |
14 |
57 |
43 |
28 |
35 |
20 |
6 |
49 |
39 |
16 |
2 |
53 |
|
11 |
60 |
46 |
25 |
15 |
56 |
42 |
29 |
34 |
21 |
7 |
48 |
38 |
17 |
3 |
52 |
|
8 |
63 |
45 |
26 |
12 |
59 |
41 |
30 |
33 |
22 |
4 |
51 |
37 |
18 |
0 |
55 |
|
9 |
62 |
44 |
27 |
13 |
58 |
40 |
31 |
32 |
23 |
5 |
50 |
36 |
19 |
1 |
54 |
|
18 |
37 |
55 |
0 |
22 |
33 |
51 |
4 |
59 |
12 |
30 |
41 |
63 |
8 |
26 |
45 |
|
19 |
36 |
54 |
1 |
23 |
32 |
50 |
5 |
58 |
13 |
31 |
40 |
62 |
9 |
27 |
44 |
|
16 |
39 |
53 |
2 |
20 |
35 |
49 |
6 |
57 |
14 |
28 |
43 |
61 |
10 |
24 |
47 |
|
17 |
38 |
52 |
3 |
21 |
34 |
48 |
7 |
56 |
15 |
29 |
42 |
60 |
11 |
25 |
46 |
第二象限 A2
33 34 47 48
|
25 |
46 |
60 |
11 |
29 |
42 |
56 |
15 |
48 |
7 |
21 |
34 |
52 |
3 |
17 |
38 |
|
24 |
47 |
61 |
10 |
28 |
43 |
57 |
14 |
49 |
6 |
20 |
35 |
53 |
2 |
16 |
39 |
|
27 |
44 |
62 |
9 |
31 |
40 |
58 |
13 |
50 |
5 |
23 |
32 |
54 |
1 |
19 |
36 |
|
26 |
45 |
63 |
8 |
30 |
41 |
59 |
12 |
51 |
4 |
22 |
33 |
55 |
0 |
18 |
37 |
|
1 |
54 |
36 |
19 |
5 |
50 |
32 |
23 |
40 |
31 |
13 |
58 |
44 |
27 |
9 |
62 |
|
0 |
55 |
37 |
18 |
4 |
51 |
33 |
22 |
41 |
30 |
12 |
59 |
45 |
26 |
8 |
63 |
|
3 |
52 |
38 |
17 |
7 |
48 |
34 |
21 |
42 |
29 |
15 |
56 |
46 |
25 |
11 |
60 |
|
2 |
53 |
39 |
16 |
6 |
49 |
35 |
20 |
43 |
28 |
14 |
57 |
47 |
24 |
10 |
61 |
|
29 |
42 |
56 |
15 |
25 |
46 |
60 |
11 |
52 |
3 |
17 |
38 |
48 |
7 |
21 |
34 |
|
28 |
43 |
57 |
14 |
24 |
47 |
61 |
10 |
53 |
2 |
16 |
39 |
49 |
6 |
20 |
35 |
|
31 |
40 |
58 |
13 |
27 |
44 |
62 |
9 |
54 |
1 |
19 |
36 |
50 |
5 |
23 |
32 |
|
30 |
41 |
59 |
12 |
26 |
45 |
63 |
8 |
55 |
0 |
18 |
37 |
51 |
4 |
22 |
33 |
|
5 |
50 |
32 |
23 |
1 |
54 |
36 |
19 |
44 |
27 |
9 |
62 |
40 |
31 |
13 |
58 |
|
4 |
51 |
33 |
22 |
0 |
55 |
37 |
18 |
45 |
26 |
8 |
63 |
41 |
30 |
12 |
59 |
|
7 |
48 |
34 |
21 |
3 |
52 |
38 |
17 |
46 |
25 |
11 |
60 |
42 |
29 |
15 |
56 |
|
6 |
49 |
35 |
20 |
2 |
53 |
39 |
16 |
47 |
24 |
10 |
61 |
43 |
28 |
14 |
57 |
第一象限 A3
49 50 63 64
|
1 |
54 |
36 |
19 |
5 |
50 |
32 |
23 |
40 |
31 |
13 |
58 |
44 |
27 |
9 |
62 |
|
0 |
55 |
37 |
18 |
4 |
51 |
33 |
22 |
41 |
30 |
12 |
59 |
45 |
26 |
8 |
63 |
|
3 |
52 |
38 |
17 |
7 |
48 |
34 |
21 |
42 |
29 |
15 |
56 |
46 |
25 |
11 |
60 |
|
2 |
53 |
39 |
16 |
6 |
49 |
35 |
20 |
43 |
28 |
14 |
57 |
47 |
24 |
10 |
61 |
|
25 |
46 |
60 |
11 |
29 |
42 |
56 |
15 |
48 |
7 |
21 |
34 |
52 |
3 |
17 |
38 |
|
24 |
47 |
61 |
10 |
28 |
43 |
57 |
14 |
49 |
6 |
20 |
35 |
53 |
2 |
16 |
39 |