| 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 | 44 |
| 14 | 57 |
| 15 | 73 |
| 16 | 93 |
| 17 | 116 |
| 18 | 147 |
| 19 | 183 |
| 20 | 228 |
| 21 | 282 |
| 22 | 348 |
| 23 | 426 |
| 24 | 524 |
| 25 | 637 |
| 26 | 775 |
| 27 | 939 |
| 28 | 1136 |
| 29 | 1366 |
| 30 | 1645 |
| 31 | 1969 |
| 32 | 2356 |
| 33 | 2809 |
| 34 | 3345 |
| 35 | 3969 |
| 36 | 4709 |
| 37 | 5564 |
| 38 | 6570 |
| 39 | 7739 |
| 40 | 9105 |
| 41 | 10683 |
| 42 | 12527 |
| 43 | 14651 |
| 44 | 17120 |
| 45 | 19965 |
| 46 | 23257 |
| 47 | 27039 |
| 48 | 31412 |
| 49 | 36420 |
[1,1,2,3,4,6,8,11,15,20,26,35,44,57,73,93,116,147, 183,228,282,348,426,524,637,775,939,1136,1366, 1645,1969,2356,2809,3345,3969,4709,5564,6570,7739, 9105,10683,12527,14651,17120,19965,23257,27039, 31412,36420] |