n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 57 |
4 | 441 |
5 | 3933 |
6 | 39249 |
7 | 430677 |
8 | 5137641 |
9 | 66103533 |
10 | 911973249 |
11 | 13428837477 |
12 | 210259505241 |
13 | 3489291147933 |
14 | 61200522593649 |
15 | 1131630622515477 |
16 | 22007781151434441 |
17 | 449197758198576333 |
18 | 9603342828706622049 |
[1,2,9,57,441,3933,39249,430677,5137641,66103533, 911973249,13428837477,210259505241,3489291147933, 61200522593649,1131630622515477,22007781151434441, 449197758198576333,9603342828706622049] |