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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 2 |
| 4 | 7 |
| 5 | 11 |
| 6 | 21 |
| 7 | 36 |
| 8 | 71 |
| 9 | 127 |
| 10 | 253 |
| 11 | 463 |
| 12 | 925 |
| 13 | 1717 |
| 14 | 3433 |
| 15 | 6436 |
| 16 | 12871 |
| 17 | 24311 |
| 18 | 48621 |
| 19 | 92379 |
| 20 | 184757 |
| 21 | 352717 |
| 22 | 705433 |
| 23 | 1352079 |
| 24 | 2704157 |
| 25 | 5200301 |
| 26 | 10400601 |
| 27 | 20058301 |
| 28 | 40116601 |
| 29 | 77558761 |
| 30 | 155117521 |
| 31 | 300540196 |
| 32 | 601080391 |
| 33 | 1166803111 |
[2,2,2,7,11,21,36,71,127,253,463,925,1717,3433, 6436,12871,24311,48621,92379,184757,352717,705433, 1352079,2704157,5200301,10400601,20058301, 40116601,77558761,155117521,300540196,601080391, 1166803111] |