n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 4 |
4 | 19 |
5 | 99 |
6 | 611 |
7 | 4376 |
8 | 35621 |
9 | 324965 |
10 | 3285269 |
11 | 36462924 |
12 | 440840359 |
13 | 5767387591 |
14 | 81184266631 |
15 | 1223531387056 |
16 | 19657686459529 |
17 | 335404201199049 |
18 | 6056933308042409 |
19 | 115417137054004820 |
20 | 2314399674388138811 |
21 | 48717810299204919851 |
22 | 1074106226256896375531 |
[1,1,1,4,19,99,611,4376,35621,324965,3285269, 36462924,440840359,5767387591,81184266631, 1223531387056,19657686459529,335404201199049, 6056933308042409,115417137054004820, 2314399674388138811,48717810299204919851, 1074106226256896375531] |