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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 6 |
| 9 | 8 |
| 10 | 10 |
| 11 | 12 |
| 12 | 15 |
| 13 | 18 |
| 14 | 22 |
| 15 | 27 |
| 16 | 32 |
| 17 | 38 |
| 18 | 46 |
| 19 | 53 |
| 20 | 62 |
| 21 | 73 |
| 22 | 84 |
| 23 | 97 |
| 24 | 112 |
| 25 | 128 |
| 26 | 146 |
| 27 | 167 |
| 28 | 189 |
| 29 | 213 |
| 30 | 241 |
| 31 | 270 |
| 32 | 302 |
| 33 | 338 |
| 34 | 375 |
| 35 | 416 |
| 36 | 461 |
| 37 | 507 |
| 38 | 558 |
| 39 | 613 |
| 40 | 670 |
| 41 | 731 |
| 42 | 797 |
| 43 | 865 |
| 44 | 937 |
| 45 | 1015 |
| 46 | 1093 |
| 47 | 1176 |
| 48 | 1264 |
[1,1,1,2,2,3,4,5,6,8,10,12,15,18,22,27,32,38,46, 53,62,73,84,97,112,128,146,167,189,213,241,270, 302,338,375,416,461,507,558,613,670,731,797,865, 937,1015,1093,1176,1264] |