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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 300 |
| 3 | 703 |
| 4 | 3003 |
| 5 | 300700 |
| 6 | 7777333333770 |
| 7 | 30770737700703 |
| 8 | 7707033303703300 |
| 9 | 77300377037737303073770 |
| 10 | 3073770307037370707370300003 |
| 11 | 33000770070773300000703773730 |
| 12 | 770037773370037377077730333003 |
[3,300,703,3003,300700,7777333333770, 30770737700703,7707033303703300, 77300377037737303073770, 3073770307037370707370300003, 33000770070773300000703773730, 770037773370037377077730333003] |