n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 9 |
4 | 28 |
5 | -15 |
6 | 306 |
7 | -1799 |
8 | 14904 |
9 | -133407 |
10 | 1335070 |
11 | -14684439 |
12 | 176214996 |
13 | -2290792751 |
14 | 32071101258 |
15 | -481066515495 |
16 | 7697064252016 |
17 | -130850092279359 |
18 | 2355301661034294 |
19 | -44750731559644727 |
20 | 895014631192902540 |
21 | -18795307255050944079 |
[0,1,6,9,28,-15,306,-1799,14904,-133407,1335070, -14684439,176214996,-2290792751,32071101258, -481066515495,7697064252016,-130850092279359, 2355301661034294,-44750731559644727, 895014631192902540,-18795307255050944079] |