n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 30 |
3 | -300 |
4 | -3850 |
5 | -13940 |
6 | 56300 |
7 | 543400 |
8 | -2332250 |
9 | -29758500 |
10 | 340835780 |
11 | 7316239000 |
12 | 40381709500 |
13 | -199606565000 |
14 | -4494519345000 |
15 | -25429880846000 |
16 | 18331676223750 |
17 | 848074482677500 |
18 | 714616060812500 |
19 | -19019302889325000 |
20 | 506727569992188500 |
[1,10,30,-300,-3850,-13940,56300,543400,-2332250, -29758500,340835780,7316239000,40381709500, -199606565000,-4494519345000,-25429880846000, 18331676223750,848074482677500,714616060812500, -19019302889325000,506727569992188500] |