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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 17 |
| 3 | 26 |
| 4 | 83 |
| 5 | 168 |
| 6 | 346 |
| 7 | 865 |
| 8 | 2055 |
| 9 | 4745 |
| 10 | 10866 |
| 11 | 24967 |
| 12 | 57786 |
| 13 | 134514 |
| 14 | 312597 |
| 15 | 722915 |
| 16 | 1670991 |
| 17 | 3869674 |
| 18 | 8969607 |
| 19 | 20789120 |
| 20 | 48159310 |
| 21 | 111529135 |
| 22 | 258315343 |
| 23 | 598428365 |
| 24 | 1386426078 |
| 25 | 3211799633 |
| 26 | 7440009880 |
| 27 | 17234511484 |
| 28 | 39924363651 |
| 29 | 92487922123 |
[5,17,26,83,168,346,865,2055,4745,10866,24967, 57786,134514,312597,722915,1670991,3869674, 8969607,20789120,48159310,111529135,258315343, 598428365,1386426078,3211799633,7440009880, 17234511484,39924363651,92487922123] |