n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 80 |
6 | 384 |
7 | 2352 |
8 | 9856 |
9 | 42840 |
10 | 169360 |
11 | 676720 |
12 | 2631072 |
13 | 10265216 |
14 | 39779600 |
15 | 154498280 |
16 | 599565952 |
17 | 2330826752 |
18 | 9068429544 |
19 | 35332969392 |
20 | 137817174800 |
21 | 538204065336 |
22 | 2103971573264 |
23 | 8233197139552 |
24 | 32247054724768 |
[0,0,0,0,0,80,384,2352,9856,42840,169360,676720, 2631072,10265216,39779600,154498280,599565952, 2330826752,9068429544,35332969392,137817174800, 538204065336,2103971573264,8233197139552, 32247054724768] |