n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | -1 |
3 | 4 |
4 | -16 |
5 | 91 |
6 | -616 |
7 | 4894 |
8 | -44416 |
9 | 453541 |
10 | -5145856 |
11 | 64222984 |
12 | -874402816 |
13 | 12897183391 |
14 | -204862698496 |
15 | 3486535686274 |
16 | -63292764553216 |
17 | 1220795601029641 |
18 | -24931903045697536 |
19 | 537463528325234764 |
20 | -12196043454064623616 |
21 | 290588368323926512291 |
22 | -7253387436695186046976 |
[0,1,-1,4,-16,91,-616,4894,-44416,453541,-5145856, 64222984,-874402816,12897183391,-204862698496, 3486535686274,-63292764553216,1220795601029641, -24931903045697536,537463528325234764, -12196043454064623616,290588368323926512291, -7253387436695186046976] |