| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 8 |
| 8 | 11 |
| 9 | 13 |
| 10 | 18 |
| 11 | 21 |
| 12 | 30 |
| 13 | 33 |
| 14 | 40 |
| 15 | 49 |
| 16 | 58 |
| 17 | 68 |
| 18 | 79 |
| 19 | 94 |
| 20 | 110 |
| 21 | 128 |
| 22 | 149 |
| 23 | 168 |
| 24 | 197 |
| 25 | 217 |
| 26 | 253 |
| 27 | 282 |
| 28 | 328 |
| 29 | 360 |
| 30 | 421 |
| 31 | 452 |
| 32 | 520 |
| 33 | 567 |
| 34 | 652 |
| 35 | 692 |
| 36 | 812 |
| 37 | 868 |
| 38 | 980 |
| 39 | 1053 |
| 40 | 1188 |
| 41 | 1278 |
| 42 | 1449 |
| 43 | 1545 |
| 44 | 1731 |
| 45 | 1837 |
| 46 | 2081 |
| 47 | 2185 |
| 48 | 2457 |
| 49 | 2598 |
| 50 | 2901 |
| 51 | 3062 |
| 52 | 3421 |
| 53 | 3603 |
| 54 | 4002 |
| 55 | 4200 |
[1,1,2,3,4,6,8,11,13,18,21,30,33,40,49,58,68,79, 94,110,128,149,168,197,217,253,282,328,360,421, 452,520,567,652,692,812,868,980,1053,1188,1278, 1449,1545,1731,1837,2081,2185,2457,2598,2901,3062, 3421,3603,4002,4200] |