n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 10 |
6 | 28 |
7 | 164 |
8 | 905 |
9 | 9826 |
10 | 103126 |
11 | 2031252 |
12 | 43437282 |
13 | 1622278624 |
14 | 66141208960 |
15 | 4579408029576 |
16 | 385335180349569 |
17 | 51207103076632066 |
18 | 8212830157184175946 |
19 | 2052124795850957537060 |
20 | 683805150345009276656138 |
[1,1,2,3,10,28,164,905,9826,103126,2031252, 43437282,1622278624,66141208960,4579408029576, 385335180349569,51207103076632066, 8212830157184175946,2052124795850957537060, 683805150345009276656138] |