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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 | 301 |
| 22 | 374 |
| 23 | 461 |
| 24 | 570 |
| 25 | 698 |
| 26 | 854 |
| 27 | 1042 |
| 28 | 1268 |
| 29 | 1535 |
| 30 | 1859 |
| 31 | 2240 |
| 32 | 2696 |
| 33 | 3235 |
| 34 | 3875 |
| 35 | 4627 |
| 36 | 5521 |
| 37 | 6565 |
| 38 | 7797 |
| 39 | 9240 |
| 40 | 10934 |
| 41 | 12906 |
| 42 | 15220 |
| 43 | 17907 |
| 44 | 21043 |
| 45 | 24683 |
| 46 | 28915 |
| 47 | 33811 |
| 48 | 39497 |
[1,1,2,3,4,6,8,11,15,20,26,35,45,58,75,96,121,154, 193,242,301,374,461,570,698,854,1042,1268,1535, 1859,2240,2696,3235,3875,4627,5521,6565,7797,9240, 10934,12906,15220,17907,21043,24683,28915,33811, 39497] |