n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 8 |
5 | 36 |
6 | 199 |
7 | 1303 |
8 | 9844 |
9 | 84217 |
10 | 804739 |
11 | 8494461 |
12 | 98158214 |
13 | 1232430909 |
14 | 16706285647 |
15 | 243169268857 |
16 | 3782633071104 |
17 | 62623591954943 |
18 | 1099391947653438 |
19 | 20399828362013788 |
20 | 398929976857158504 |
[1,1,1,3,8,36,199,1303,9844,84217,804739,8494461, 98158214,1232430909,16706285647,243169268857, 3782633071104,62623591954943,1099391947653438, 20399828362013788,398929976857158504] |