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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 9 |
| 3 | 18 |
| 4 | 37 |
| 5 | 108 |
| 6 | 245 |
| 7 | 454 |
| 8 | 759 |
| 9 | 1172 |
| 10 | 2001 |
| 11 | 3144 |
| 12 | 4663 |
| 13 | 6568 |
| 14 | 8945 |
| 15 | 12690 |
| 16 | 17353 |
| 17 | 23022 |
| 18 | 29787 |
| 19 | 37710 |
| 20 | 48921 |
| 21 | 62130 |
| 22 | 77465 |
| 23 | 95100 |
| 24 | 115177 |
| 25 | 141596 |
| 26 | 171767 |
| 27 | 205850 |
| 28 | 244065 |
| 29 | 286652 |
| 30 | 340277 |
| 31 | 400038 |
| 32 | 466375 |
| 33 | 539488 |
| 34 | 619685 |
| 35 | 717388 |
| 36 | 824733 |
| 37 | 942014 |
[2,9,18,37,108,245,454,759,1172,2001,3144,4663, 6568,8945,12690,17353,23022,29787,37710,48921, 62130,77465,95100,115177,141596,171767,205850, 244065,286652,340277,400038,466375,539488,619685, 717388,824733,942014] |