n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 6 |
4 | 8 |
5 | 1 |
6 | 3 |
7 | 5 |
8 | 7 |
9 | 9 |
10 | 11 |
11 | 13 |
12 | 15 |
13 | 17 |
14 | 19 |
15 | 39 |
16 | 59 |
17 | 79 |
18 | 99 |
19 | 119 |
20 | 139 |
21 | 159 |
22 | 179 |
23 | 199 |
24 | 399 |
25 | 599 |
26 | 799 |
27 | 999 |
28 | 1199 |
29 | 1399 |
30 | 1599 |
31 | 1799 |
32 | 1999 |
33 | 3999 |
34 | 5999 |
35 | 7999 |
36 | 9999 |
37 | 11999 |
38 | 13999 |
39 | 15999 |
40 | 17999 |
41 | 19999 |
42 | 39999 |
43 | 59999 |
44 | 79999 |
45 | 99999 |
46 | 119999 |
47 | 139999 |
48 | 159999 |
49 | 179999 |
[2,4,6,8,1,3,5,7,9,11,13,15,17,19,39,59,79,99,119, 139,159,179,199,399,599,799,999,1199,1399,1599, 1799,1999,3999,5999,7999,9999,11999,13999,15999, 17999,19999,39999,59999,79999,99999,119999,139999, 159999,179999] |