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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 50 |
| 3 | 98 |
| 4 | 242 |
| 5 | 338 |
| 6 | 578 |
| 7 | 722 |
| 8 | 1058 |
| 9 | 1682 |
| 10 | 1922 |
| 11 | 2738 |
| 12 | 3362 |
| 13 | 3698 |
| 14 | 4418 |
| 15 | 5618 |
| 16 | 6962 |
| 17 | 7442 |
| 18 | 8978 |
| 19 | 10082 |
| 20 | 10658 |
| 21 | 12482 |
| 22 | 13778 |
| 23 | 15842 |
| 24 | 18818 |
| 25 | 20402 |
| 26 | 21218 |
| 27 | 22898 |
| 28 | 23762 |
| 29 | 25538 |
| 30 | 32258 |
| 31 | 34322 |
| 32 | 37538 |
| 33 | 38642 |
| 34 | 44402 |
| 35 | 45602 |
| 36 | 49298 |
| 37 | 53138 |
| 38 | 55778 |
| 39 | 59858 |
[18,50,98,242,338,578,722,1058,1682,1922,2738, 3362,3698,4418,5618,6962,7442,8978,10082,10658, 12482,13778,15842,18818,20402,21218,22898,23762, 25538,32258,34322,37538,38642,44402,45602,49298, 53138,55778,59858] |