n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 9 |
5 | 33 |
6 | 99 |
7 | 111 |
8 | 141 |
9 | 151 |
10 | 171 |
11 | 303 |
12 | 393 |
13 | 535 |
14 | 717 |
15 | 727 |
16 | 777 |
17 | 787 |
18 | 979 |
19 | 1441 |
20 | 1771 |
21 | 3003 |
22 | 3223 |
23 | 3663 |
24 | 5335 |
25 | 7447 |
26 | 9009 |
27 | 9339 |
28 | 9999 |
29 | 10501 |
30 | 11011 |
31 | 11811 |
32 | 11911 |
33 | 12121 |
34 | 12321 |
35 | 12621 |
36 | 13531 |
37 | 13831 |
38 | 14041 |
39 | 14541 |
40 | 14841 |
41 | 17671 |
42 | 18181 |
[1,3,7,9,33,99,111,141,151,171,303,393,535,717, 727,777,787,979,1441,1771,3003,3223,3663,5335, 7447,9009,9339,9999,10501,11011,11811,11911,12121, 12321,12621,13531,13831,14041,14541,14841,17671, 18181] |