n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 10 |
6 | 0 |
7 | 882 |
8 | 13312 |
9 | 85536 |
10 | 561440 |
11 | 2276736 |
12 | 9471744 |
13 | 27991470 |
14 | 85725696 |
15 | 209107890 |
16 | 525062144 |
17 | 1116665944 |
18 | 2437807104 |
19 | 4691672964 |
20 | 9234168960 |
21 | 16462896030 |
22 | 29919532544 |
23 | 50215537658 |
24 | 85687824384 |
25 | 136944081500 |
[0,0,0,0,10,0,882,13312,85536,561440,2276736, 9471744,27991470,85725696,209107890,525062144, 1116665944,2437807104,4691672964,9234168960, 16462896030,29919532544,50215537658,85687824384, 136944081500] |