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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 0 |
| 6 | 2 |
| 7 | 2 |
| 8 | 1 |
| 9 | 4 |
| 10 | 4 |
| 11 | 4 |
| 12 | 9 |
| 13 | 10 |
| 14 | 11 |
| 15 | 21 |
| 16 | 25 |
| 17 | 30 |
| 18 | 51 |
| 19 | 62 |
| 20 | 80 |
| 21 | 125 |
| 22 | 157 |
| 23 | 208 |
| 24 | 309 |
| 25 | 399 |
| 26 | 536 |
| 27 | 772 |
| 28 | 1013 |
| 29 | 1373 |
| 30 | 1938 |
| 31 | 2574 |
| 32 | 3503 |
| 33 | 4882 |
| 34 | 6540 |
| 35 | 8918 |
| 36 | 12329 |
| 37 | 16611 |
| 38 | 22672 |
| 39 | 31183 |
| 40 | 42182 |
| 41 | 57588 |
| 42 | 78952 |
| 43 | 107092 |
| 44 | 146202 |
| 45 | 200037 |
| 46 | 271831 |
| 47 | 371057 |
| 48 | 507053 |
| 49 | 689885 |
| 50 | 941558 |
| 51 | 1285655 |
| 52 | 1750672 |
| 53 | 2388951 |
| 54 | 3260459 |
| 55 | 4442179 |
| 56 | 6060948 |
[1,1,0,1,1,0,2,2,1,4,4,4,9,10,11,21,25,30,51,62, 80,125,157,208,309,399,536,772,1013,1373,1938, 2574,3503,4882,6540,8918,12329,16611,22672,31183, 42182,57588,78952,107092,146202,200037,271831, 371057,507053,689885,941558,1285655,1750672, 2388951,3260459,4442179,6060948] |