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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 78 |
| 3 | 270 |
| 4 | 306 |
| 5 | 558 |
| 6 | 846 |
| 7 | 1098 |
| 8 | 1182 |
| 9 | 1188 |
| 10 | 1590 |
| 11 | 1608 |
| 12 | 1626 |
| 13 | 2106 |
| 14 | 2196 |
| 15 | 2298 |
| 16 | 2538 |
| 17 | 2718 |
| 18 | 2868 |
| 19 | 4368 |
| 20 | 4590 |
| 21 | 4716 |
| 22 | 4806 |
| 23 | 4926 |
| 24 | 4950 |
| 25 | 6078 |
| 26 | 7866 |
| 27 | 8646 |
| 28 | 8700 |
| 29 | 8952 |
| 30 | 9150 |
| 31 | 9558 |
| 32 | 9918 |
| 33 | 10176 |
| 34 | 10506 |
| 35 | 10998 |
| 36 | 11358 |
| 37 | 11778 |
| 38 | 12648 |
| 39 | 12870 |
| 40 | 13116 |
| 41 | 13530 |
| 42 | 13638 |
| 43 | 15090 |
| 44 | 16806 |
[18,78,270,306,558,846,1098,1182,1188,1590,1608, 1626,2106,2196,2298,2538,2718,2868,4368,4590,4716, 4806,4926,4950,6078,7866,8646,8700,8952,9150,9558, 9918,10176,10506,10998,11358,11778,12648,12870, 13116,13530,13638,15090,16806] |