n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -1 |
3 | -4 |
4 | -23 |
5 | -171 |
6 | -1542 |
7 | -16241 |
8 | -194973 |
9 | -2622610 |
10 | -39027573 |
11 | -636225591 |
12 | -11272598680 |
13 | -215668335091 |
14 | -4431191311809 |
15 | -97316894892644 |
16 | -2275184746472827 |
17 | -56421527472282127 |
18 | -1479397224086870294 |
19 | -40897073524132164189 |
20 | -1188896226524012279617 |
[1,-1,-1,-4,-23,-171,-1542,-16241,-194973, -2622610,-39027573,-636225591,-11272598680, -215668335091,-4431191311809,-97316894892644, -2275184746472827,-56421527472282127, -1479397224086870294,-40897073524132164189, -1188896226524012279617] |