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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 36 |
| 3 | 50 |
| 4 | 72 |
| 5 | 84 |
| 6 | 98 |
| 7 | 100 |
| 8 | 144 |
| 9 | 156 |
| 10 | 162 |
| 11 | 196 |
| 12 | 200 |
| 13 | 225 |
| 14 | 228 |
| 15 | 242 |
| 16 | 252 |
| 17 | 273 |
| 18 | 288 |
| 19 | 300 |
| 20 | 324 |
| 21 | 336 |
| 22 | 338 |
| 23 | 364 |
| 24 | 372 |
| 25 | 392 |
| 26 | 399 |
| 27 | 400 |
| 28 | 441 |
| 29 | 444 |
| 30 | 468 |
| 31 | 484 |
| 32 | 516 |
| 33 | 525 |
| 34 | 532 |
| 35 | 576 |
| 36 | 578 |
| 37 | 624 |
| 38 | 648 |
| 39 | 651 |
| 40 | 676 |
| 41 | 684 |
| 42 | 700 |
| 43 | 722 |
| 44 | 732 |
| 45 | 741 |
| 46 | 756 |
| 47 | 777 |
| 48 | 784 |
| 49 | 800 |
| 50 | 804 |
| 51 | 819 |
| 52 | 868 |
| 53 | 876 |
[18,36,50,72,84,98,100,144,156,162,196,200,225, 228,242,252,273,288,300,324,336,338,364,372,392, 399,400,441,444,468,484,516,525,532,576,578,624, 648,651,676,684,700,722,732,741,756,777,784,800, 804,819,868,876] |