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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 4 |
| 8 | 1 |
| 9 | 10 |
| 10 | 2 |
| 11 | 20 |
| 12 | 8 |
| 13 | 35 |
| 14 | 29 |
| 15 | 57 |
| 16 | 85 |
| 17 | 94 |
| 18 | 211 |
| 19 | 175 |
| 20 | 464 |
| 21 | 385 |
| 22 | 938 |
| 23 | 935 |
| 24 | 1808 |
| 25 | 2289 |
| 26 | 3459 |
| 27 | 5385 |
| 28 | 6826 |
| 29 | 12031 |
| 30 | 14198 |
| 31 | 25686 |
| 32 | 30960 |
| 33 | 53176 |
| 34 | 69143 |
| 35 | 108699 |
| 36 | 154433 |
| 37 | 223215 |
| 38 | 340006 |
| 39 | 465867 |
| 40 | 734561 |
| 41 | 991088 |
| 42 | 1561313 |
| 43 | 2138884 |
| 44 | 3286129 |
| 45 | 4643816 |
| 46 | 6900097 |
| 47 | 10067197 |
[1,0,1,0,1,1,1,4,1,10,2,20,8,35,29,57,85,94,211, 175,464,385,938,935,1808,2289,3459,5385,6826, 12031,14198,25686,30960,53176,69143,108699,154433, 223215,340006,465867,734561,991088,1561313, 2138884,3286129,4643816,6900097,10067197] |