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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 33 |
| 2 | 703 |
| 3 | 12333 |
| 4 | 194239 |
| 5 | 2860821 |
| 6 | 40291111 |
| 7 | 549874221 |
| 8 | 7333588207 |
| 9 | 96118840389 |
| 10 | 1242878986999 |
| 11 | 15899609772189 |
| 12 | 201637495269055 |
| 13 | 2538952949123637 |
| 14 | 31780003009949767 |
| 15 | 395799688351994637 |
[1,33,703,12333,194239,2860821,40291111,549874221, 7333588207,96118840389,1242878986999, 15899609772189,201637495269055,2538952949123637, 31780003009949767,395799688351994637] |