n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | -3 |
4 | 12 |
5 | -40 |
6 | 358 |
7 | -2499 |
8 | 25032 |
9 | -229104 |
10 | 2865402 |
11 | -36173115 |
12 | 550240020 |
13 | -8500522680 |
14 | 149846317710 |
15 | -2762418635235 |
16 | 56365118364240 |
17 | -1205267403147360 |
18 | 27829436319559410 |
19 | -674568212738977395 |
[0,0,2,-3,12,-40,358,-2499,25032,-229104,2865402, -36173115,550240020,-8500522680,149846317710, -2762418635235,56365118364240,-1205267403147360, 27829436319559410,-674568212738977395] |