The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 51 |
| 3 | 762 |
| 4 | 9405 |
| 5 | 109194 |
| 6 | 1239185 |
| 7 | 13937206 |
| 8 | 156188077 |
| 9 | 1747769906 |
| 10 | 19546177481 |
| 11 | 218541500622 |
| 12 | 2443222239685 |
| 13 | 27313318510154 |
| 14 | 305336555697185 |
| 15 | 3413345205975206 |
| 16 | 38157545443338717 |
| 17 | 426560032707189986 |
[1,51,762,9405,109194,1239185,13937206,156188077, 1747769906,19546177481,218541500622,2443222239685, 27313318510154,305336555697185,3413345205975206, 38157545443338717,426560032707189986] |