n | a(n) |
---|---|
1 | 1 |
2 | 123 |
3 | 72 |
4 | 424 |
5 | 1868 |
6 | 11170 |
7 | 55922 |
8 | 291320 |
9 | 1544411 |
10 | 8168814 |
11 | 43135601 |
12 | 228337677 |
13 | 1208744793 |
14 | 6398223796 |
15 | 33881994478 |
16 | 179433657982 |
17 | 950232876834 |
18 | 5032989751367 |
19 | 26658489563077 |
20 | 141204904014504 |
21 | 747985019374304 |
[1,123,72,424,1868,11170,55922,291320,1544411, 8168814,43135601,228337677,1208744793,6398223796, 33881994478,179433657982,950232876834, 5032989751367,26658489563077,141204904014504, 747985019374304] |