n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | -48 |
5 | -1220 |
6 | -19440 |
7 | -69720 |
8 | 14407680 |
9 | 953539776 |
10 | 35565868800 |
11 | -210727440000 |
12 | -201519805132800 |
13 | -23287596250913280 |
14 | -1387143593335019520 |
15 | 70361372381908608000 |
16 | 36238719331572645888000 |
17 | 6110545675513945739673600 |
18 | 457510061917491552313344000 |
19 | -86824257027562156263159398400 |
20 | -44392403385021894430349721600000 |
[1,1,2,3,-48,-1220,-19440,-69720,14407680, 953539776,35565868800,-210727440000, -201519805132800,-23287596250913280, -1387143593335019520,70361372381908608000, 36238719331572645888000,6110545675513945739673600, 457510061917491552313344000, -86824257027562156263159398400, -44392403385021894430349721600000] |