n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 17 |
6 | 4130 |
7 | 246498 |
8 | 6833514 |
9 | 114889560 |
10 | 1350364581 |
11 | 12098859685 |
12 | 87508246816 |
13 | 531900780705 |
14 | 2798253712804 |
15 | 13029075803653 |
16 | 54632738218122 |
17 | 209171316078609 |
18 | 739462342785714 |
19 | 2436048010628520 |
20 | 7535911103201627 |
[0,0,0,0,17,4130,246498,6833514,114889560, 1350364581,12098859685,87508246816,531900780705, 2798253712804,13029075803653,54632738218122, 209171316078609,739462342785714,2436048010628520, 7535911103201627] |