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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 4 |
| 7 | 4 |
| 8 | 9 |
| 9 | 11 |
| 10 | 18 |
| 11 | 19 |
| 12 | 30 |
| 13 | 36 |
| 14 | 51 |
| 15 | 64 |
| 16 | 90 |
| 17 | 107 |
| 18 | 150 |
| 19 | 182 |
| 20 | 239 |
| 21 | 294 |
| 22 | 385 |
| 23 | 466 |
| 24 | 602 |
| 25 | 733 |
| 26 | 928 |
| 27 | 1129 |
| 28 | 1420 |
| 29 | 1714 |
| 30 | 2137 |
| 31 | 2578 |
| 32 | 3177 |
| 33 | 3826 |
| 34 | 4690 |
| 35 | 5617 |
| 36 | 6845 |
| 37 | 8181 |
| 38 | 9898 |
| 39 | 11803 |
| 40 | 14211 |
| 41 | 16878 |
| 42 | 20234 |
| 43 | 23974 |
| 44 | 28596 |
| 45 | 33795 |
| 46 | 40161 |
| 47 | 47311 |
| 48 | 56025 |
| 49 | 65845 |
[0,1,0,1,3,2,4,4,9,11,18,19,30,36,51,64,90,107, 150,182,239,294,385,466,602,733,928,1129,1420, 1714,2137,2578,3177,3826,4690,5617,6845,8181,9898, 11803,14211,16878,20234,23974,28596,33795,40161, 47311,56025,65845] |