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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 8 |
| 8 | 11 |
| 9 | 15 |
| 10 | 20 |
| 11 | 26 |
| 12 | 35 |
| 13 | 45 |
| 14 | 58 |
| 15 | 75 |
| 16 | 96 |
| 17 | 121 |
| 18 | 154 |
| 19 | 193 |
| 20 | 242 |
| 21 | 302 |
| 22 | 375 |
| 23 | 463 |
| 24 | 573 |
| 25 | 703 |
| 26 | 861 |
| 27 | 1052 |
| 28 | 1282 |
| 29 | 1555 |
| 30 | 1886 |
| 31 | 2277 |
| 32 | 2745 |
| 33 | 3301 |
| 34 | 3961 |
| 35 | 4740 |
| 36 | 5667 |
| 37 | 6754 |
| 38 | 8038 |
| 39 | 9548 |
| 40 | 11323 |
| 41 | 13398 |
| 42 | 15836 |
| 43 | 18678 |
| 44 | 22001 |
| 45 | 25873 |
| 46 | 30383 |
| 47 | 35620 |
| 48 | 41715 |
| 49 | 48771 |
[1,1,1,2,3,4,6,8,11,15,20,26,35,45,58,75,96,121, 154,193,242,302,375,463,573,703,861,1052,1282, 1555,1886,2277,2745,3301,3961,4740,5667,6754,8038, 9548,11323,13398,15836,18678,22001,25873,30383, 35620,41715,48771] |