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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 29 |
| 3 | 100 |
| 4 | 1777 |
| 5 | 6178 |
| 6 | 110125 |
| 7 | 382916 |
| 8 | 6825953 |
| 9 | 23734594 |
| 10 | 423098941 |
| 11 | 1471161892 |
| 12 | 26225308369 |
| 13 | 91188302690 |
| 14 | 1625546019917 |
| 15 | 5652203604868 |
| 16 | 100757627926465 |
| 17 | 350345435199106 |
| 18 | 6245347385420893 |
| 19 | 21715764778739684 |
| 20 | 387110780268168881 |
| 21 | 1346027070846661282 |
[2,29,100,1777,6178,110125,382916,6825953, 23734594,423098941,1471161892,26225308369, 91188302690,1625546019917,5652203604868, 100757627926465,350345435199106,6245347385420893, 21715764778739684,387110780268168881, 1346027070846661282] |