n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 20 |
4 | 230 |
5 | 2515 |
6 | 26889 |
7 | 282211 |
8 | 2930013 |
9 | 30196730 |
10 | 309564822 |
11 | 3161099901 |
12 | 32182595954 |
13 | 326874672928 |
14 | 3313770788984 |
[0,2,20,230,2515,26889,282211,2930013,30196730, 309564822,3161099901,32182595954,326874672928, 3313770788984] |