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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 13 |
| 9 | 19 |
| 10 | 27 |
| 11 | 39 |
| 12 | 56 |
| 13 | 81 |
| 14 | 117 |
| 15 | 168 |
| 16 | 242 |
| 17 | 348 |
| 18 | 503 |
| 19 | 725 |
| 20 | 1046 |
| 21 | 1506 |
| 22 | 2169 |
| 23 | 3124 |
| 24 | 4501 |
| 25 | 6487 |
| 26 | 9348 |
| 27 | 13471 |
| 28 | 19409 |
| 29 | 27965 |
| 30 | 40293 |
| 31 | 58058 |
| 32 | 83657 |
| 33 | 120540 |
| 34 | 173684 |
| 35 | 250255 |
| 36 | 360589 |
| 37 | 519568 |
| 38 | 748642 |
| 39 | 1078708 |
| 40 | 1554291 |
| 41 | 2239548 |
| 42 | 3226923 |
| 43 | 4649623 |
[1,1,2,2,3,4,6,9,13,19,27,39,56,81,117,168,242, 348,503,725,1046,1506,2169,3124,4501,6487,9348, 13471,19409,27965,40293,58058,83657,120540,173684, 250255,360589,519568,748642,1078708,1554291, 2239548,3226923,4649623] |