n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 26 |
3 | 268 |
4 | 3851 |
5 | 69308 |
6 | 1459552 |
7 | 34513468 |
8 | 893162569 |
9 | 24873809192 |
10 | 736914860764 |
11 | 23034718900652 |
12 | 755096654861093 |
13 | 25838920473462512 |
14 | 919688365896843632 |
15 | 33951797935609852260 |
16 | 1296987353334993492885 |
[1,4,26,268,3851,69308,1459552,34513468,893162569, 24873809192,736914860764,23034718900652, 755096654861093,25838920473462512, 919688365896843632,33951797935609852260, 1296987353334993492885] |