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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 3 |
| 10 | 3 |
| 11 | 4 |
| 12 | 6 |
| 13 | 9 |
| 14 | 11 |
| 15 | 14 |
| 16 | 19 |
| 17 | 27 |
| 18 | 36 |
| 19 | 47 |
| 20 | 63 |
| 21 | 86 |
| 22 | 116 |
| 23 | 154 |
| 24 | 206 |
| 25 | 278 |
| 26 | 375 |
| 27 | 502 |
| 28 | 672 |
| 29 | 903 |
| 30 | 1215 |
| 31 | 1631 |
| 32 | 2187 |
| 33 | 2936 |
| 34 | 3945 |
| 35 | 5298 |
| 36 | 7110 |
| 37 | 9544 |
| 38 | 12817 |
| 39 | 17212 |
| 40 | 23107 |
| 41 | 31020 |
| 42 | 41650 |
| 43 | 55926 |
| 44 | 75088 |
| 45 | 100810 |
[1,0,0,0,1,1,1,1,2,3,3,4,6,9,11,14,19,27,36,47,63, 86,116,154,206,278,375,502,672,903,1215,1631,2187, 2936,3945,5298,7110,9544,12817,17212,23107,31020, 41650,55926,75088,100810] |