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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 5 |
| 9 | 7 |
| 10 | 9 |
| 11 | 10 |
| 12 | 13 |
| 13 | 15 |
| 14 | 18 |
| 15 | 22 |
| 16 | 26 |
| 17 | 30 |
| 18 | 36 |
| 19 | 42 |
| 20 | 49 |
| 21 | 58 |
| 22 | 67 |
| 23 | 77 |
| 24 | 89 |
| 25 | 103 |
| 26 | 118 |
| 27 | 136 |
| 28 | 156 |
| 29 | 177 |
| 30 | 203 |
| 31 | 231 |
| 32 | 263 |
| 33 | 299 |
| 34 | 338 |
| 35 | 383 |
| 36 | 433 |
| 37 | 489 |
| 38 | 550 |
| 39 | 620 |
| 40 | 696 |
| 41 | 781 |
| 42 | 877 |
| 43 | 981 |
| 44 | 1097 |
| 45 | 1227 |
| 46 | 1369 |
| 47 | 1526 |
| 48 | 1702 |
| 49 | 1893 |
| 50 | 2104 |
| 51 | 2339 |
| 52 | 2595 |
| 53 | 2877 |
| 54 | 3189 |
| 55 | 3530 |
[1,1,1,2,2,3,4,5,5,7,9,10,13,15,18,22,26,30,36,42, 49,58,67,77,89,103,118,136,156,177,203,231,263, 299,338,383,433,489,550,620,696,781,877,981,1097, 1227,1369,1526,1702,1893,2104,2339,2595,2877,3189, 3530] |