n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | 2 |
4 | 21 |
5 | 54 |
6 | -605 |
7 | -8422 |
8 | -17815 |
9 | 915470 |
10 | 13791711 |
11 | -14182158 |
12 | -3814159811 |
13 | -55759417546 |
14 | 472583147387 |
15 | 33181980839114 |
16 | 418144112565969 |
17 | -10448831982433506 |
18 | -511822958265199817 |
19 | -4431070683610565086 |
[1,-1,-1,2,21,54,-605,-8422,-17815,915470, 13791711,-14182158,-3814159811,-55759417546, 472583147387,33181980839114,418144112565969, -10448831982433506,-511822958265199817, -4431070683610565086] |