n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | -6 |
4 | 35 |
5 | -225 |
6 | 1624 |
7 | -13132 |
8 | 118124 |
9 | -1172700 |
10 | 12753576 |
11 | -150917976 |
12 | 1931559552 |
13 | -26596717056 |
14 | 392156797824 |
15 | -6165817614720 |
16 | 102992244837120 |
17 | -1821602444624640 |
18 | 34012249593822720 |
19 | -668609730341153280 |
20 | 13803759753640704000 |
21 | -298631902863216384000 |
[0,0,1,-6,35,-225,1624,-13132,118124,-1172700, 12753576,-150917976,1931559552,-26596717056, 392156797824,-6165817614720,102992244837120, -1821602444624640,34012249593822720, -668609730341153280,13803759753640704000, -298631902863216384000] |