n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 9 |
4 | -52 |
5 | 520 |
6 | -6636 |
7 | 102984 |
8 | -1864600 |
9 | 38741463 |
10 | -909081740 |
11 | 23775986069 |
12 | -685854111804 |
13 | 21633935838489 |
14 | -740800448012044 |
15 | 27368368159530285 |
16 | -1085102592823737200 |
17 | 45957792326631241516 |
18 | -2070863582899905915336 |
19 | 98920982783031811482920 |
20 | -4993219047619535240997780 |
[1,0,9,-52,520,-6636,102984,-1864600,38741463, -909081740,23775986069,-685854111804, 21633935838489,-740800448012044,27368368159530285, -1085102592823737200,45957792326631241516, -2070863582899905915336,98920982783031811482920, -4993219047619535240997780] |