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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 7 |
| 9 | 10 |
| 10 | 15 |
| 11 | 21 |
| 12 | 29 |
| 13 | 40 |
| 14 | 57 |
| 15 | 81 |
| 16 | 114 |
| 17 | 159 |
| 18 | 223 |
| 19 | 315 |
| 20 | 445 |
| 21 | 626 |
| 22 | 879 |
| 23 | 1236 |
| 24 | 1741 |
| 25 | 2452 |
| 26 | 3450 |
| 27 | 4852 |
| 28 | 6826 |
| 29 | 9608 |
| 30 | 13524 |
| 31 | 19032 |
| 32 | 26778 |
| 33 | 37680 |
| 34 | 53027 |
| 35 | 74627 |
| 36 | 105017 |
| 37 | 147776 |
| 38 | 207949 |
| 39 | 292636 |
| 40 | 411813 |
| 41 | 579515 |
| 42 | 815499 |
| 43 | 1147585 |
| 44 | 1614917 |
| 45 | 2272566 |
| 46 | 3198016 |
| 47 | 4500318 |
| 48 | 6332952 |
| 49 | 8911902 |
| 50 | 12541080 |
[1,1,1,1,2,3,4,5,7,10,15,21,29,40,57,81,114,159, 223,315,445,626,879,1236,1741,2452,3450,4852,6826, 9608,13524,19032,26778,37680,53027,74627,105017, 147776,207949,292636,411813,579515,815499,1147585, 1614917,2272566,3198016,4500318,6332952,8911902, 12541080] |