n | a(n) |
---|---|
0 | 3 |
1 | 18 |
2 | 122 |
3 | 918 |
4 | 7442 |
5 | 63198 |
6 | 551162 |
7 | 4877478 |
8 | 43502882 |
9 | 389635758 |
10 | 3497598602 |
11 | 31434082038 |
12 | 282690454322 |
13 | 2543153640318 |
14 | 22883164406042 |
15 | 205922723414598 |
16 | 1853177071709762 |
17 | 16677961818988878 |
18 | 150098518713741482 |
[3,18,122,918,7442,63198,551162,4877478,43502882, 389635758,3497598602,31434082038,282690454322, 2543153640318,22883164406042,205922723414598, 1853177071709762,16677961818988878, 150098518713741482] |