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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 3 |
| 7 | 9 |
| 8 | 7 |
| 9 | 15 |
| 10 | 16 |
| 11 | 29 |
| 12 | 23 |
| 13 | 47 |
| 14 | 43 |
| 15 | 74 |
| 16 | 65 |
| 17 | 114 |
| 18 | 100 |
| 19 | 174 |
| 20 | 153 |
| 21 | 257 |
| 22 | 228 |
| 23 | 368 |
| 24 | 312 |
| 25 | 530 |
| 26 | 454 |
| 27 | 736 |
| 28 | 645 |
| 29 | 1025 |
| 30 | 902 |
| 31 | 1402 |
| 32 | 1184 |
| 33 | 1909 |
| 34 | 1626 |
| 35 | 2618 |
| 36 | 2184 |
| 37 | 3412 |
| 38 | 2895 |
| 39 | 4551 |
| 40 | 3887 |
| 41 | 5966 |
| 42 | 5055 |
| 43 | 7796 |
| 44 | 6509 |
| 45 | 10244 |
| 46 | 8462 |
| 47 | 13060 |
| 48 | 10881 |
| 49 | 16834 |
| 50 | 14021 |
| 51 | 21471 |
[0,0,1,1,4,3,9,7,15,16,29,23,47,43,74,65,114,100, 174,153,257,228,368,312,530,454,736,645,1025,902, 1402,1184,1909,1626,2618,2184,3412,2895,4551,3887, 5966,5055,7796,6509,10244,8462,13060,10881,16834, 14021,21471] |