n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -3 |
4 | 0 |
5 | 30 |
6 | 90 |
7 | -588 |
8 | -5040 |
9 | 11400 |
10 | 325080 |
11 | 336072 |
12 | -25237080 |
13 | -126955920 |
14 | 2273150880 |
15 | 25210740552 |
16 | -217110741120 |
17 | -4985924326080 |
18 | 16380284725440 |
19 | 1066531842442752 |
20 | 1493617498611840 |
21 | -249776526926340480 |
22 | -1647997041357152640 |
23 | 63281386481329443072 |
[1,0,0,-3,0,30,90,-588,-5040,11400,325080,336072, -25237080,-126955920,2273150880,25210740552, -217110741120,-4985924326080,16380284725440, 1066531842442752,1493617498611840, -249776526926340480,-1647997041357152640, 63281386481329443072] |