n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 7 |
6 | 16 |
7 | 54 |
8 | 243 |
9 | 2038 |
10 | 33120 |
11 | 1182004 |
12 | 87723296 |
13 | 12886193064 |
14 | 3633057074584 |
15 | 1944000150734320 |
16 | 1967881448329407496 |
17 | 3768516017219786199856 |
18 | 13670271807937483065795200 |
19 | 94109042015724412679233018144 |
20 | 1232069666043220685614640133362240 |
[1,1,2,3,7,16,54,243,2038,33120,1182004,87723296, 12886193064,3633057074584,1944000150734320, 1967881448329407496,3768516017219786199856, 13670271807937483065795200, 94109042015724412679233018144, 1232069666043220685614640133362240] |