n | a(n) |
---|---|
0 | 0 |
1 | 5 |
2 | 55 |
3 | 485 |
4 | 4015 |
5 | 32525 |
6 | 261415 |
7 | 2094965 |
8 | 16770655 |
9 | 134198045 |
10 | 1073682775 |
11 | 8589757445 |
12 | 68718945295 |
13 | 549754219565 |
14 | 4398041728135 |
15 | 35184357739925 |
16 | 281474933663935 |
17 | 2251799684545085 |
18 | 18014398122061495 |
19 | 144115186913594405 |
[0,5,55,485,4015,32525,261415,2094965,16770655, 134198045,1073682775,8589757445,68718945295, 549754219565,4398041728135,35184357739925, 281474933663935,2251799684545085, 18014398122061495,144115186913594405] |