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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 1 |
| 6 | 4 |
| 7 | 2 |
| 8 | 7 |
| 9 | 5 |
| 10 | 14 |
| 11 | 12 |
| 12 | 27 |
| 13 | 26 |
| 14 | 53 |
| 15 | 57 |
| 16 | 106 |
| 17 | 122 |
| 18 | 212 |
| 19 | 258 |
| 20 | 428 |
| 21 | 543 |
| 22 | 868 |
| 23 | 1135 |
| 24 | 1766 |
| 25 | 2364 |
| 26 | 3605 |
| 27 | 4910 |
| 28 | 7374 |
| 29 | 10175 |
| 30 | 15109 |
| 31 | 21054 |
| 32 | 30998 |
| 33 | 43513 |
| 34 | 63656 |
| 35 | 89851 |
| 36 | 130817 |
| 37 | 185416 |
| 38 | 268984 |
| 39 | 382436 |
| 40 | 553308 |
| 41 | 788520 |
| 42 | 1138525 |
| 43 | 1625356 |
| 44 | 2343253 |
[1,0,1,0,2,1,4,2,7,5,14,12,27,26,53,57,106,122, 212,258,428,543,868,1135,1766,2364,3605,4910,7374, 10175,15109,21054,30998,43513,63656,89851,130817, 185416,268984,382436,553308,788520,1138525, 1625356,2343253] |