n | a(n) |
---|---|
1 | 11 |
2 | 22 |
3 | 33 |
4 | 44 |
5 | 56 |
6 | 67 |
7 | 78 |
8 | 89 |
9 | 91 |
10 | 1 |
11 | 12 |
12 | 23 |
13 | 34 |
14 | 45 |
15 | 57 |
16 | 68 |
17 | 79 |
18 | -1 |
19 | 91 |
20 | 2 |
21 | 13 |
22 | 24 |
23 | 35 |
24 | 47 |
25 | 58 |
26 | 69 |
27 | -1 |
28 | 81 |
29 | 91 |
30 | 3 |
31 | 14 |
32 | 25 |
33 | 36 |
34 | 48 |
35 | 59 |
36 | -1 |
37 | 71 |
38 | 81 |
39 | 91 |
40 | 4 |
41 | 15 |
42 | 26 |
43 | 38 |
44 | 49 |
45 | -1 |
46 | 61 |
47 | 71 |
48 | 81 |
49 | 91 |
50 | 5 |
51 | 16 |
52 | 27 |
53 | 39 |
54 | -1 |
55 | 51 |
56 | 61 |
57 | 71 |
58 | 81 |
59 | 91 |
60 | 6 |
61 | 17 |
62 | 29 |
63 | -1 |
64 | 41 |
65 | 51 |
66 | 61 |
67 | 71 |
68 | 81 |
69 | 91 |
70 | 7 |
71 | 18 |
72 | -1 |
[11,22,33,44,56,67,78,89,91,1,12,23,34,45,57,68, 79,-1,91,2,13,24,35,47,58,69,-1,81,91,3,14,25,36, 48,59,-1,71,81,91,4,15,26,38,49,-1,61,71,81,91,5, 16,27,39,-1,51,61,71,81,91,6,17,29,-1,41,51,61,71, 81,91,7,18,-1] |