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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 18 |
| 7 | 50 |
| 8 | 89 |
| 9 | 147 |
| 10 | 161 |
| 11 | 702 |
| 12 | 999 |
| 13 | 1323 |
| 14 | 1998 |
| 15 | 2091 |
| 16 | 3042 |
| 17 | 3072 |
| 18 | 3753 |
| 19 | 7982 |
| 20 | 13408 |
| 21 | 32493 |
| 22 | 33867 |
| 23 | 99999 |
| 24 | 179922 |
| 25 | 199998 |
| 26 | 368121 |
| 27 | 375897 |
| 28 | 384876 |
| 29 | 741137 |
| 30 | 993006 |
| 31 | 1173628 |
| 32 | 1410462 |
| 33 | 2021017 |
| 34 | 3160593 |
| 35 | 7212528 |
| 36 | 9975778 |
| 37 | 9999999 |
| 38 | 17052657 |
| 39 | 18093882 |
| 40 | 18782433 |
[1,3,5,7,9,18,50,89,147,161,702,999,1323,1998, 2091,3042,3072,3753,7982,13408,32493,33867,99999, 179922,199998,368121,375897,384876,741137,993006, 1173628,1410462,2021017,3160593,7212528,9975778, 9999999,17052657,18093882,18782433] |