n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 5 |
4 | 30 |
5 | 186 |
6 | 1197 |
7 | 7953 |
8 | 54233 |
9 | 377697 |
10 | 2676006 |
11 | 19230738 |
12 | 139850889 |
13 | 1027326257 |
14 | 7612046713 |
15 | 56825410753 |
16 | 426995181354 |
17 | 3227048864886 |
18 | 24513726327089 |
19 | 187067287095441 |
20 | 1433409279614225 |
21 | 11024386107439141 |
22 | 85075022074507194 |
[0,0,1,5,30,186,1197,7953,54233,377697,2676006, 19230738,139850889,1027326257,7612046713, 56825410753,426995181354,3227048864886, 24513726327089,187067287095441,1433409279614225, 11024386107439141,85075022074507194] |