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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 99 |
| 3 | 162 |
| 4 | 180 |
| 5 | 261 |
| 6 | 342 |
| 7 | 423 |
| 8 | 504 |
| 9 | 585 |
| 10 | 666 |
| 11 | 747 |
| 12 | 828 |
| 13 | 891 |
| 14 | 909 |
| 15 | 990 |
| 16 | 1071 |
| 17 | 1152 |
| 18 | 1233 |
| 19 | 1314 |
| 20 | 1395 |
| 21 | 1458 |
| 22 | 1557 |
| 23 | 1620 |
| 24 | 1638 |
| 25 | 1719 |
| 26 | 1800 |
| 27 | 1881 |
| 28 | 1962 |
| 29 | 2043 |
| 30 | 2124 |
| 31 | 2205 |
| 32 | 2286 |
| 33 | 2349 |
| 34 | 2367 |
| 35 | 2448 |
| 36 | 2529 |
| 37 | 2610 |
| 38 | 2691 |
| 39 | 2772 |
| 40 | 2853 |
[18,99,162,180,261,342,423,504,585,666,747,828, 891,909,990,1071,1152,1233,1314,1395,1458,1557, 1620,1638,1719,1800,1881,1962,2043,2124,2205,2286, 2349,2367,2448,2529,2610,2691,2772,2853] |