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| n | a(n) |
|---|---|
| 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 | 462 |
| 24 | 572 |
| 25 | 701 |
| 26 | 858 |
| 27 | 1047 |
| 28 | 1275 |
| 29 | 1545 |
| 30 | 1872 |
| 31 | 2257 |
| 32 | 2718 |
| 33 | 3264 |
| 34 | 3912 |
| 35 | 4674 |
| 36 | 5581 |
| 37 | 6641 |
| 38 | 7892 |
| 39 | 9359 |
| 40 | 11082 |
| 41 | 13090 |
| 42 | 15447 |
| 43 | 18186 |
| 44 | 21385 |
| 45 | 25102 |
| 46 | 29425 |
| 47 | 34430 |
| 48 | 40247 |
[1,1,2,3,4,6,8,11,15,20,26,35,45,58,75,96,121,154, 193,242,302,375,462,572,701,858,1047,1275,1545, 1872,2257,2718,3264,3912,4674,5581,6641,7892,9359, 11082,13090,15447,18186,21385,25102,29425,34430, 40247] |