n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 38 |
4 | 305 |
5 | 2777 |
6 | 28784 |
7 | 330262 |
8 | 4152852 |
9 | 56601345 |
10 | 829656124 |
11 | 12992213830 |
12 | 216182349617 |
13 | 3804599096781 |
14 | 70540645679070 |
15 | 1373192662197632 |
16 | 27982783451615363 |
17 | 595355578447896291 |
18 | 13193917702518844859 |
19 | 303931339674133588444 |
20 | 7263814501407389465610 |
[1,1,6,38,305,2777,28784,330262,4152852,56601345, 829656124,12992213830,216182349617,3804599096781, 70540645679070,1373192662197632,27982783451615363, 595355578447896291,13193917702518844859, 303931339674133588444,7263814501407389465610] |