n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 33 |
4 | 237 |
5 | 1801 |
6 | 14197 |
7 | 114609 |
8 | 940445 |
9 | 7809273 |
10 | 65437541 |
11 | 552276577 |
12 | 4688278093 |
13 | 39991233641 |
14 | 342517093333 |
15 | 2943809545105 |
16 | 25377201555325 |
17 | 219341012215385 |
18 | 1900216743054021 |
19 | 16496109719061825 |
20 | 143469924189693229 |
[1,1,5,33,237,1801,14197,114609,940445,7809273, 65437541,552276577,4688278093,39991233641, 342517093333,2943809545105,25377201555325, 219341012215385,1900216743054021, 16496109719061825,143469924189693229] |