n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 15 |
4 | 119 |
5 | 1343 |
6 | 19905 |
7 | 369113 |
8 | 8285261 |
9 | 219627683 |
10 | 6746244739 |
11 | 236561380795 |
12 | 9356173080985 |
13 | 413251604702069 |
14 | 20215438754502217 |
15 | 1087524296159855603 |
16 | 63950948621703499839 |
17 | 4089003767746536828183 |
18 | 282970817307108139386841 |
19 | 21107742616278461624923449 |
20 | 1690957890908364634072451893 |
[1,1,3,15,119,1343,19905,369113,8285261,219627683, 6746244739,236561380795,9356173080985, 413251604702069,20215438754502217, 1087524296159855603,63950948621703499839, 4089003767746536828183,282970817307108139386841, 21107742616278461624923449, 1690957890908364634072451893] |