The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 379 |
| 3 | 14407 |
| 4 | 689431 |
| 5 | 4235659 |
| 6 | 41647747 |
| 7 | 137534083 |
| 8 | 239900179 |
| 9 | 242121643 |
| 10 | 349909477 |
| 11 | 1245283747 |
| 12 | 1478065891 |
| 13 | 1605314383 |
| 14 | 2500276549 |
| 15 | 2748751303 |
| 16 | 5618210347 |
| 17 | 7490947129 |
[7,379,14407,689431,4235659,41647747,137534083, 239900179,242121643,349909477,1245283747, 1478065891,1605314383,2500276549,2748751303, 5618210347,7490947129] |