n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | -1 |
3 | -6 |
4 | -15 |
5 | 20 |
6 | 255 |
7 | 70 |
8 | -3423 |
9 | 46728 |
10 | 501375 |
11 | -3625358 |
12 | -60112239 |
13 | 420430556 |
14 | 9211149311 |
15 | -79037179650 |
16 | -2033765765567 |
17 | 18361020368016 |
18 | 572833991092479 |
19 | -5418169914165654 |
20 | -201869115241158607 |
[1,0,-1,-6,-15,20,255,70,-3423,46728,501375, -3625358,-60112239,420430556,9211149311, -79037179650,-2033765765567,18361020368016, 572833991092479,-5418169914165654, -201869115241158607] |