The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 376 |
| 3 | 4200 |
| 4 | 46853 |
| 5 | 554620 |
| 6 | 5972476 |
| 7 | 58336803 |
| 8 | 513856445 |
| 9 | 4101307146 |
| 10 | 29848597757 |
| 11 | 199510291989 |
| 12 | 1233383781223 |
| 13 | 7098573840897 |
| 14 | 38262130398415 |
| 15 | 194182080859393 |
| 16 | 932300124491835 |
| 17 | 4252520574236931 |
| 18 | 18497724390086100 |
[128,376,4200,46853,554620,5972476,58336803, 513856445,4101307146,29848597757,199510291989, 1233383781223,7098573840897,38262130398415, 194182080859393,932300124491835,4252520574236931, 18497724390086100] |