n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 17 |
5 | 123 |
6 | 1052 |
7 | 10568 |
8 | 125750 |
9 | 1726189 |
10 | 26730394 |
11 | 460982300 |
12 | 8766443952 |
13 | 182229703043 |
14 | 4110207945794 |
15 | 99970680376908 |
16 | 2608221938476016 |
17 | 72656914458625593 |
18 | 2152355976206481570 |
19 | 67562405794276542004 |
20 | 2240111797037473955984 |
21 | 78229640115171735522015 |
22 | 2870092624821982184377202 |
[0,1,2,4,17,123,1052,10568,125750,1726189, 26730394,460982300,8766443952,182229703043, 4110207945794,99970680376908,2608221938476016, 72656914458625593,2152355976206481570, 67562405794276542004,2240111797037473955984, 78229640115171735522015,2870092624821982184377202] |