n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 46 |
5 | 330 |
6 | 2756 |
7 | 25782 |
8 | 263866 |
9 | 2909092 |
10 | 34181138 |
11 | 424730866 |
12 | 5549236120 |
13 | 75895955810 |
14 | 1082808876274 |
15 | 16069706031016 |
16 | 247501424330182 |
17 | 3948322598675930 |
18 | 65130737179097436 |
19 | 1109339652229852966 |
[1,2,8,46,330,2756,25782,263866,2909092,34181138, 424730866,5549236120,75895955810,1082808876274, 16069706031016,247501424330182,3948322598675930, 65130737179097436,1109339652229852966] |