n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 11 |
3 | 31 |
4 | 331 |
5 | 1451 |
6 | 15101 |
7 | 85961 |
8 | 876331 |
9 | 5917531 |
10 | 59415961 |
11 | 450749861 |
12 | 4481629021 |
13 | 36869221741 |
14 | 364723196891 |
15 | 3177413896031 |
16 | 31389891383531 |
17 | 284948206851691 |
18 | 2818704750978761 |
19 | 26367817118386661 |
20 | 261622144605718681 |
21 | 2502704635436220281 |
22 | 24932548891897186991 |
[1,1,11,31,331,1451,15101,85961,876331,5917531, 59415961,450749861,4481629021,36869221741, 364723196891,3177413896031,31389891383531, 284948206851691,2818704750978761, 26367817118386661,261622144605718681, 2502704635436220281,24932548891897186991] |