n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 3 |
5 | 2 |
6 | 3 |
7 | 6 |
8 | 7 |
9 | 3 |
10 | 4 |
11 | 12 |
12 | 13 |
13 | 4 |
14 | 5 |
15 | 20 |
16 | 21 |
17 | 5 |
18 | 6 |
19 | 30 |
20 | 31 |
21 | 6 |
22 | 7 |
23 | 42 |
24 | 43 |
25 | 7 |
26 | 8 |
27 | 56 |
28 | 57 |
29 | 8 |
30 | 9 |
31 | 72 |
32 | 73 |
33 | 9 |
34 | 10 |
35 | 90 |
36 | 91 |
37 | 10 |
38 | 11 |
39 | 110 |
40 | 111 |
41 | 11 |
42 | 12 |
43 | 132 |
44 | 133 |
45 | 12 |
46 | 13 |
47 | 156 |
48 | 157 |
49 | 13 |
50 | 14 |
51 | 182 |
52 | 183 |
53 | 14 |
54 | 15 |
55 | 210 |
56 | 211 |
57 | 15 |
58 | 16 |
59 | 240 |
60 | 241 |
61 | 16 |
62 | 17 |
63 | 272 |
64 | 273 |
65 | 17 |
66 | 18 |
67 | 306 |
68 | 307 |
69 | 18 |
70 | 19 |
71 | 342 |
72 | 343 |
73 | 19 |
74 | 20 |
75 | 380 |
76 | 381 |
77 | 20 |
78 | 21 |
79 | 420 |
80 | 421 |
[1,2,2,3,2,3,6,7,3,4,12,13,4,5,20,21,5,6,30,31,6, 7,42,43,7,8,56,57,8,9,72,73,9,10,90,91,10,11,110, 111,11,12,132,133,12,13,156,157,13,14,182,183,14, 15,210,211,15,16,240,241,16,17,272,273,17,18,306, 307,18,19,342,343,19,20,380,381,20,21,420,421] |