n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 18 |
4 | 54 |
5 | 1140 |
6 | 13903 |
7 | 99051 |
8 | 13049563 |
9 | 360783593 |
10 | 6044482889 |
11 | 4738211572702 |
12 | 303872744726644 |
13 | 11986520595161863 |
14 | 54755153078468134960 |
15 | 8217125138015950451626 |
16 | 764291947227525464744293 |
17 | 20119942924108379011391597989 |
18 | 7095967027221343377167292602835 |
19 | 1558052539448513320447263528275071 |
[1,1,3,18,54,1140,13903,99051,13049563,360783593, 6044482889,4738211572702,303872744726644, 11986520595161863,54755153078468134960, 8217125138015950451626,764291947227525464744293, 20119942924108379011391597989, 7095967027221343377167292602835, 1558052539448513320447263528275071] |