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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 1 |
| 6 | 3 |
| 7 | 2 |
| 8 | 6 |
| 9 | 5 |
| 10 | 9 |
| 11 | 9 |
| 12 | 16 |
| 13 | 17 |
| 14 | 26 |
| 15 | 28 |
| 16 | 42 |
| 17 | 48 |
| 18 | 66 |
| 19 | 77 |
| 20 | 105 |
| 21 | 122 |
| 22 | 160 |
| 23 | 189 |
| 24 | 245 |
| 25 | 290 |
| 26 | 368 |
| 27 | 436 |
| 28 | 547 |
| 29 | 650 |
| 30 | 804 |
| 31 | 954 |
| 32 | 1174 |
| 33 | 1390 |
| 34 | 1693 |
| 35 | 2004 |
| 36 | 2425 |
| 37 | 2865 |
| 38 | 3445 |
| 39 | 4060 |
| 40 | 4858 |
| 41 | 5716 |
| 42 | 6802 |
| 43 | 7986 |
| 44 | 9468 |
| 45 | 11087 |
| 46 | 13088 |
| 47 | 15298 |
| 48 | 17995 |
| 49 | 20987 |
| 50 | 24604 |
| 51 | 28631 |
| 52 | 33464 |
[0,1,0,2,1,3,2,6,5,9,9,16,17,26,28,42,48,66,77, 105,122,160,189,245,290,368,436,547,650,804,954, 1174,1390,1693,2004,2425,2865,3445,4060,4858,5716, 6802,7986,9468,11087,13088,15298,17995,20987, 24604,28631,33464] |