n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 1 |
4 | -4 |
5 | 21 |
6 | -126 |
7 | 1023 |
8 | -8240 |
9 | 84745 |
10 | -864370 |
11 | 10925883 |
12 | -133566808 |
13 | 1994183205 |
14 | -28455880012 |
15 | 489891177051 |
16 | -8112780640000 |
17 | 158096182329585 |
18 | -2911196026492074 |
19 | 64115697136312563 |
20 | -1328879415116924744 |
21 | 31920276313015362525 |
22 | -728711636884140292372 |
[1,0,1,-4,21,-126,1023,-8240,84745,-864370, 10925883,-133566808,1994183205,-28455880012, 489891177051,-8112780640000,158096182329585, -2911196026492074,64115697136312563, -1328879415116924744,31920276313015362525, -728711636884140292372] |