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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 7 |
| 2 | 273 |
| 3 | 25281 |
| 4 | 4860585 |
| 5 | 1520437901 |
| 6 | 713815391573 |
| 7 | 467486065936241 |
| 8 | 407759612652705585 |
| 9 | 456789179734173978453 |
| 10 | 639216817349035080850221 |
| 11 | 1092719494568563774636567193 |
| 12 | 2240714632058571537628165246601 |
[2,7,273,25281,4860585,1520437901,713815391573, 467486065936241,407759612652705585, 456789179734173978453,639216817349035080850221, 1092719494568563774636567193, 2240714632058571537628165246601] |