n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -6 |
4 | -31 |
5 | -140 |
6 | -577 |
7 | -1498 |
8 | 6785 |
9 | 192840 |
10 | 2667711 |
11 | 31783730 |
12 | 353106657 |
13 | 3771795196 |
14 | 38270910975 |
15 | 356214219678 |
16 | 2639000258561 |
17 | 4515406498320 |
18 | -420731049845121 |
19 | -13553517751217174 |
20 | -318084517098105631 |
[1,0,-1,-6,-31,-140,-577,-1498,6785,192840, 2667711,31783730,353106657,3771795196,38270910975, 356214219678,2639000258561,4515406498320, -420731049845121,-13553517751217174, -318084517098105631] |