n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 1 |
4 | -12 |
5 | 35 |
6 | -195 |
7 | 1979 |
8 | -13552 |
9 | 131333 |
10 | -1540845 |
11 | 16920341 |
12 | -219934044 |
13 | 3138657015 |
14 | -46097651327 |
15 | 745768998623 |
16 | -12886218266880 |
17 | 233789283755465 |
18 | -4532667637516281 |
19 | 92739558324236905 |
20 | -1991654643609977740 |
[0,1,-1,1,-12,35,-195,1979,-13552,131333,-1540845, 16920341,-219934044,3138657015,-46097651327, 745768998623,-12886218266880,233789283755465, -4532667637516281,92739558324236905, -1991654643609977740] |