n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 5040 |
8 | 322560 |
9 | 10342080 |
10 | 216518400 |
11 | 3261535200 |
12 | 37026823680 |
13 | 325474269120 |
14 | 2264594492160 |
15 | 12789814237200 |
16 | 60389186457600 |
17 | 245221330273920 |
18 | 877374833287680 |
19 | 2821277454690240 |
20 | 8284633867238400 |
21 | 22503569636419200 |
22 | 57135310310453760 |
[0,0,0,0,0,0,0,5040,322560,10342080,216518400, 3261535200,37026823680,325474269120,2264594492160, 12789814237200,60389186457600,245221330273920, 877374833287680,2821277454690240,8284633867238400, 22503569636419200,57135310310453760] |