n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 14 |
10 | 99 |
11 | 459 |
12 | 1714 |
13 | 5270 |
14 | 14401 |
15 | 36907 |
16 | 86696 |
17 | 194306 |
18 | 414660 |
19 | 849564 |
20 | 1681744 |
21 | 3230120 |
22 | 6034046 |
[0,0,0,0,0,0,0,0,0,14,99,459,1714,5270,14401, 36907,86696,194306,414660,849564,1681744,3230120, 6034046] |