n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | -4 |
5 | 90 |
6 | -126 |
7 | -840 |
8 | 21104 |
9 | -137592 |
10 | -88920 |
11 | 15741000 |
12 | -197234808 |
13 | 535289040 |
14 | 25582565904 |
15 | -522317151720 |
16 | 3223601137920 |
17 | 75590725210560 |
18 | -2388641226278976 |
19 | 23718732310200960 |
20 | 361277667059425920 |
21 | -17515819241263405440 |
22 | 246424647059545933440 |
[1,0,2,3,-4,90,-126,-840,21104,-137592,-88920, 15741000,-197234808,535289040,25582565904, -522317151720,3223601137920,75590725210560, -2388641226278976,23718732310200960, 361277667059425920,-17515819241263405440, 246424647059545933440] |