n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 19 |
5 | 297 |
6 | 8953 |
7 | 572155 |
8 | 72116459 |
9 | 18460128753 |
10 | 9414877745601 |
11 | 9640779710687955 |
12 | 19725063387945457219 |
13 | 80793830752052788593529 |
14 | 661701532957780822275151305 |
15 | 10841317673677535233876159099755 |
[1,1,1,3,19,297,8953,572155,72116459,18460128753, 9414877745601,9640779710687955, 19725063387945457219,80793830752052788593529, 661701532957780822275151305, 10841317673677535233876159099755] |