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| n | a(n) |
|---|---|
| 1 | 21 |
| 2 | 102 |
| 3 | 183 |
| 4 | 197 |
| 5 | 264 |
| 6 | 345 |
| 7 | 426 |
| 8 | 507 |
| 9 | 588 |
| 10 | 669 |
| 11 | 750 |
| 12 | 831 |
| 13 | 912 |
| 14 | 926 |
| 15 | 993 |
| 16 | 1074 |
| 17 | 1155 |
| 18 | 1236 |
| 19 | 1317 |
| 20 | 1398 |
| 21 | 1479 |
| 22 | 1560 |
| 23 | 1641 |
| 24 | 1655 |
| 25 | 1781 |
| 26 | 1803 |
| 27 | 1884 |
| 28 | 1965 |
| 29 | 2046 |
| 30 | 2127 |
| 31 | 2208 |
| 32 | 2289 |
| 33 | 2370 |
| 34 | 2384 |
| 35 | 2451 |
| 36 | 2532 |
| 37 | 2613 |
| 38 | 2694 |
| 39 | 2775 |
| 40 | 2856 |
[21,102,183,197,264,345,426,507,588,669,750,831, 912,926,993,1074,1155,1236,1317,1398,1479,1560, 1641,1655,1781,1803,1884,1965,2046,2127,2208,2289, 2370,2384,2451,2532,2613,2694,2775,2856] |