n | a(n) |
---|---|
0 | 1 |
1 | -4 |
2 | 15 |
3 | -58 |
4 | 229 |
5 | -924 |
6 | 3795 |
7 | -15822 |
8 | 66801 |
9 | -285072 |
10 | 1227759 |
11 | -5329938 |
12 | 23299309 |
13 | -102474004 |
14 | 453139947 |
15 | -2013469718 |
16 | 8985382889 |
17 | -40255260696 |
18 | 180985860071 |
19 | -816328679450 |
20 | 3692868722661 |
21 | -16750809358364 |
22 | 76170701553635 |
23 | -347166666620958 |
24 | 1585669523701729 |
[1,-4,15,-58,229,-924,3795,-15822,66801,-285072, 1227759,-5329938,23299309,-102474004,453139947, -2013469718,8985382889,-40255260696,180985860071, -816328679450,3692868722661,-16750809358364, 76170701553635,-347166666620958,1585669523701729] |