n | a(n) |
---|---|
0 | -1 |
1 | 0 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 4 |
6 | 5 |
7 | 6 |
8 | 7 |
9 | 8 |
10 | 9 |
11 | -1 |
12 | -1 |
13 | -1 |
14 | -1 |
15 | -1 |
16 | -1 |
17 | -1 |
18 | -1 |
19 | -1 |
20 | -1 |
21 | 10 |
22 | 11 |
23 | 12 |
24 | 13 |
25 | 14 |
26 | 15 |
27 | 16 |
28 | 17 |
29 | 18 |
30 | -1 |
31 | 20 |
32 | 21 |
33 | 22 |
34 | 23 |
35 | 24 |
36 | 25 |
37 | 26 |
38 | 27 |
39 | 28 |
40 | -1 |
41 | 30 |
42 | 31 |
43 | 32 |
44 | 33 |
45 | 34 |
46 | 35 |
47 | 36 |
48 | 37 |
49 | 38 |
50 | -1 |
51 | 40 |
52 | 41 |
53 | 42 |
54 | 43 |
55 | 44 |
56 | 45 |
57 | 46 |
58 | 47 |
59 | 48 |
60 | -1 |
61 | 50 |
62 | 51 |
63 | 52 |
64 | 53 |
65 | 54 |
66 | 55 |
67 | 56 |
68 | 57 |
69 | 58 |
70 | -1 |
71 | 60 |
72 | 61 |
73 | 62 |
74 | 63 |
[-1,0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,-1,-1, -1,-1,10,11,12,13,14,15,16,17,18,-1,20,21,22,23, 24,25,26,27,28,-1,30,31,32,33,34,35,36,37,38,-1, 40,41,42,43,44,45,46,47,48,-1,50,51,52,53,54,55, 56,57,58,-1,60,61,62,63] |