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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 41 |
| 5 | 116 |
| 6 | 197 |
| 7 | 312 |
| 8 | 435 |
| 9 | 684 |
| 10 | 1046 |
| 11 | 1430 |
| 12 | 1892 |
| 13 | 2404 |
| 14 | 3155 |
| 15 | 3977 |
| 16 | 9289 |
| 17 | 17044 |
| 18 | 26575 |
| 19 | 38954 |
| 20 | 54776 |
| 21 | 73661 |
| 22 | 96632 |
| 23 | 119637 |
| 24 | 218363 |
| 25 | 361381 |
| 26 | 512404 |
| 27 | 1179475 |
| 28 | 2374678 |
| 29 | 3643657 |
| 30 | 5111420 |
| 31 | 7125412 |
| 32 | 9493318 |
| 33 | 13246266 |
[2,5,11,41,116,197,312,435,684,1046,1430,1892, 2404,3155,3977,9289,17044,26575,38954,54776,73661, 96632,119637,218363,361381,512404,1179475,2374678, 3643657,5111420,7125412,9493318,13246266] |