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| n | a(n) |
|---|---|
| 2 | 5 |
| 3 | 12 |
| 4 | 29 |
| 5 | 70 |
| 6 | 169 |
| 7 | 408 |
| 8 | 985 |
| 9 | 2378 |
| 10 | 5741 |
| 11 | 13860 |
| 12 | 33461 |
| 13 | 80782 |
| 14 | 195025 |
| 15 | 470832 |
| 16 | 1136689 |
| 17 | 2744210 |
| 18 | 6625109 |
| 19 | 15994428 |
| 20 | 38613965 |
| 21 | 93222358 |
| 22 | 225058681 |
| 23 | 543339720 |
| 24 | 1311738121 |
| 25 | 3166815962 |
| 26 | 7645370045 |
| 27 | 18457556052 |
| 28 | 44560482149 |
| 29 | 107578520350 |
| 30 | 259717522849 |
| 31 | 627013566048 |
| 32 | 1513744654945 |
| 33 | 3654502875938 |
[5,12,29,70,169,408,985,2378,5741,13860,33461, 80782,195025,470832,1136689,2744210,6625109, 15994428,38613965,93222358,225058681,543339720, 1311738121,3166815962,7645370045,18457556052, 44560482149,107578520350,259717522849, 627013566048,1513744654945,3654502875938] |