Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -3 |
4 | 0 |
5 | 0 |
6 | 90 |
7 | -63 |
8 | 0 |
9 | -8880 |
10 | 22680 |
11 | -49203 |
12 | 2118600 |
13 | -12383280 |
14 | 60540480 |
15 | -1131841623 |
16 | 10857974400 |
17 | -87893114400 |
18 | 1246674306240 |
19 | -15590737021923 |
20 | 175749917616000 |
21 | -2471071936993440 |
22 | 35757593223327360 |
23 | -502589340005210703 |
24 | 7719667979121014400 |
[1,0,0,-3,0,0,90,-63,0,-8880,22680,-49203,2118600, -12383280,60540480,-1131841623,10857974400, -87893114400,1246674306240,-15590737021923, 175749917616000,-2471071936993440, 35757593223327360,-502589340005210703, 7719667979121014400] |