n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -6 |
4 | -27 |
5 | -100 |
6 | -285 |
7 | 70 |
8 | 10857 |
9 | 138456 |
10 | 1345575 |
11 | 12246322 |
12 | 104657421 |
13 | 905107892 |
14 | 7506129995 |
15 | 67825026750 |
16 | 599458508113 |
17 | 7155160301616 |
18 | 87359515770831 |
19 | 1675741434252522 |
20 | 28468606356977333 |
[1,0,-1,-6,-27,-100,-285,70,10857,138456,1345575, 12246322,104657421,905107892,7506129995, 67825026750,599458508113,7155160301616, 87359515770831,1675741434252522,28468606356977333] |