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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 8 |
| 3 | 17 |
| 4 | 36 |
| 5 | 88 |
| 6 | 218 |
| 7 | 550 |
| 8 | 1413 |
| 9 | 3679 |
| 10 | 9622 |
| 11 | 25297 |
| 12 | 66737 |
| 13 | 176537 |
| 14 | 467998 |
| 15 | 1242484 |
| 16 | 3302290 |
| 17 | 8784054 |
| 18 | 23380494 |
| 19 | 62260292 |
| 20 | 165852148 |
| 21 | 441922283 |
| 22 | 1177759340 |
| 23 | 3139292094 |
| 24 | 8368647139 |
| 25 | 22310795825 |
| 26 | 59484268378 |
| 27 | 158602342446 |
| 28 | 422894828108 |
| 29 | 1127630055693 |
[5,8,17,36,88,218,550,1413,3679,9622,25297,66737, 176537,467998,1242484,3302290,8784054,23380494, 62260292,165852148,441922283,1177759340, 3139292094,8368647139,22310795825,59484268378, 158602342446,422894828108,1127630055693] |