n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 5 |
6 | 1 |
7 | 35 |
8 | 35 |
9 | 1 |
10 | 175 |
11 | 385 |
12 | 1925 |
13 | 25025 |
14 | 35035 |
15 | 875875 |
16 | 5005 |
17 | 14889875 |
18 | 14889875 |
19 | 11316305 |
20 | 1414538125 |
21 | 1980353375 |
22 | 108919435625 |
23 | 357878145625 |
24 | 26369968625 |
25 | 62628675484375 |
26 | 162834556259375 |
27 | 814172781296875 |
[1,1,1,1,1,5,1,35,35,1,175,385,1925,25025,35035, 875875,5005,14889875,14889875,11316305,1414538125, 1980353375,108919435625,357878145625,26369968625, 62628675484375,162834556259375,814172781296875] |