n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 24 |
4 | 130 |
5 | 815 |
6 | 5871 |
7 | 47950 |
8 | 438404 |
9 | 4438845 |
10 | 49320505 |
11 | 596778116 |
12 | 7812368070 |
13 | 110024183659 |
14 | 1658826153635 |
15 | 26659706040570 |
16 | 454992316425736 |
17 | 8218298715439865 |
18 | 156631104929559789 |
19 | 3141323826642838000 |
[0,1,5,24,130,815,5871,47950,438404,4438845, 49320505,596778116,7812368070,110024183659, 1658826153635,26659706040570,454992316425736, 8218298715439865,156631104929559789, 3141323826642838000] |