n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 42 |
4 | 335 |
5 | 2886 |
6 | 26166 |
7 | 246028 |
8 | 2377161 |
9 | 23459250 |
10 | 235452723 |
11 | 2395998060 |
12 | 24663705924 |
13 | 256358715585 |
14 | 2686893609015 |
15 | 28364934291912 |
16 | 301334854075058 |
17 | 3219067773992448 |
18 | 34558507062732315 |
19 | 372646872976093760 |
20 | 4034272938342360147 |
[1,1,6,42,335,2886,26166,246028,2377161,23459250, 235452723,2395998060,24663705924,256358715585, 2686893609015,28364934291912,301334854075058, 3219067773992448,34558507062732315, 372646872976093760,4034272938342360147] |