n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | -6 |
3 | 22 |
4 | -115 |
5 | 675 |
6 | -4268 |
7 | 28328 |
8 | -194664 |
9 | 1372984 |
10 | -9882190 |
11 | 72293094 |
12 | -535946436 |
13 | 4017628380 |
14 | -30402186474 |
15 | 231924537486 |
16 | -1781685227700 |
17 | 13771456884192 |
18 | -107024198084814 |
19 | 835752089556270 |
20 | -6554617760700801 |
21 | 51606615762239313 |
[1,2,-6,22,-115,675,-4268,28328,-194664,1372984, -9882190,72293094,-535946436,4017628380, -30402186474,231924537486,-1781685227700, 13771456884192,-107024198084814,835752089556270, -6554617760700801,51606615762239313] |