n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 5 |
4 | 20 |
5 | 84 |
6 | 409 |
7 | 2365 |
8 | 16064 |
9 | 125664 |
10 | 1112073 |
11 | 10976173 |
12 | 119481284 |
13 | 1421542628 |
14 | 18348340113 |
15 | 255323504917 |
16 | 3809950976992 |
17 | 60683990530208 |
18 | 1027542662934897 |
19 | 18430998766219317 |
20 | 349096664728623316 |
21 | 6962409983976703316 |
22 | 145841989688186383337 |
[0,1,5,20,84,409,2365,16064,125664,1112073, 10976173,119481284,1421542628,18348340113, 255323504917,3809950976992,60683990530208, 1027542662934897,18430998766219317, 349096664728623316,6962409983976703316, 145841989688186383337] |