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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 4 |
| 3 | 37 |
| 4 | 370 |
| 5 | 3703 |
| 6 | 37036 |
| 7 | 370369 |
| 8 | 3703702 |
| 9 | 37037035 |
| 10 | 370370368 |
| 11 | 3703703701 |
| 12 | 37037037034 |
| 13 | 370370370367 |
| 14 | 3703703703700 |
| 15 | 37037037037033 |
| 16 | 370370370370366 |
| 17 | 3703703703703699 |
| 18 | 37037037037037032 |
| 19 | 370370370370370365 |
[1,1,4,37,370,3703,37036,370369,3703702,37037035, 370370368,3703703701,37037037034,370370370367, 3703703703700,37037037037033,370370370370366, 3703703703703699,37037037037037032, 370370370370370365] |