n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 0 |
4 | 12 |
5 | -26 |
6 | 312 |
7 | -1338 |
8 | 16684 |
9 | -104994 |
10 | 1463904 |
11 | -12138218 |
12 | 190104132 |
13 | -1956240066 |
14 | 34206491416 |
15 | -420374124426 |
16 | 8140714373532 |
17 | -116318340148898 |
18 | 2474986205007504 |
19 | -40312051604277354 |
[1,1,2,0,12,-26,312,-1338,16684,-104994,1463904, -12138218,190104132,-1956240066,34206491416, -420374124426,8140714373532,-116318340148898, 2474986205007504,-40312051604277354] |