n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 30 |
4 | 728 |
5 | 5364 |
6 | 24401 |
7 | 84279 |
8 | 242772 |
9 | 614084 |
10 | 1407834 |
11 | 2987248 |
12 | 5953244 |
13 | 11262680 |
14 | 20390851 |
15 | 35550385 |
16 | 59981016 |
17 | 98327320 |
18 | 157124404 |
19 | 245414754 |
[0,0,30,728,5364,24401,84279,242772,614084, 1407834,2987248,5953244,11262680,20390851, 35550385,59981016,98327320,157124404,245414754] |