n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 20 |
4 | 64 |
5 | 1668 |
6 | 27712 |
7 | 355279 |
8 | 779264 |
9 | 170190707 |
10 | 6100448256 |
11 | 159424073982 |
12 | 2545667031040 |
13 | 239361355053790 |
14 | 812743283245056 |
15 | 58702956893404802 |
16 | 17949710147773530112 |
17 | 488189490082385976772 |
18 | 38768887410023899070464 |
19 | 313775221076492698014434 |
20 | 11531764219557396646723584 |
[0,0,0,20,64,1668,27712,355279,779264,170190707, 6100448256,159424073982,2545667031040, 239361355053790,812743283245056,58702956893404802, 17949710147773530112,488189490082385976772, 38768887410023899070464,313775221076492698014434, 11531764219557396646723584] |