n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 21 |
4 | 208 |
5 | 2631 |
6 | 40295 |
7 | 724892 |
8 | 14984945 |
9 | 350068993 |
10 | 9121438862 |
11 | 262285777567 |
12 | 8250643190038 |
13 | 281849526767134 |
14 | 10390959086757005 |
15 | 411219228179234026 |
16 | 17387847546353549435 |
17 | 782342249208357483984 |
18 | 37321230268969840324231 |
19 | 1881590248383756833279387 |
[1,1,3,21,208,2631,40295,724892,14984945, 350068993,9121438862,262285777567,8250643190038, 281849526767134,10390959086757005, 411219228179234026,17387847546353549435, 782342249208357483984,37321230268969840324231, 1881590248383756833279387] |