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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 3 |
| 7 | 3 |
| 8 | 0 |
| 9 | 4 |
| 10 | 5 |
| 11 | 0 |
| 12 | 5 |
| 13 | 15 |
| 14 | 0 |
| 15 | 6 |
| 16 | 21 |
| 17 | 16 |
| 18 | 0 |
| 19 | 7 |
| 20 | 42 |
| 21 | 25 |
| 22 | 0 |
| 23 | 8 |
| 24 | 54 |
| 25 | 68 |
| 26 | 0 |
| 27 | 9 |
| 28 | 90 |
| 29 | 142 |
| 30 | 0 |
| 31 | 10 |
| 32 | 110 |
| 33 | 248 |
| 34 | 125 |
| 35 | 0 |
| 36 | 11 |
| 37 | 165 |
| 38 | 409 |
| 39 | 189 |
| 40 | 0 |
| 41 | 12 |
| 42 | 195 |
| 43 | 710 |
| 44 | 496 |
| 45 | 0 |
| 46 | 13 |
| 47 | 273 |
| 48 | 1033 |
| 49 | 967 |
| 50 | 0 |
| 51 | 14 |
| 52 | 315 |
| 53 | 1562 |
| 54 | 2096 |
| 55 | 0 |
| 56 | 15 |
| 57 | 420 |
| 58 | 2291 |
| 59 | 3265 |
| 60 | 1296 |
| 61 | 0 |
| 62 | 16 |
| 63 | 476 |
| 64 | 3180 |
[1,0,1,0,2,0,3,3,0,4,5,0,5,15,0,6,21,16,0,7,42,25, 0,8,54,68,0,9,90,142,0,10,110,248,125,0,11,165, 409,189,0,12,195,710,496,0,13,273,1033,967,0,14, 315,1562,2096,0,15,420,2291,3265,1296,0,16,476, 3180] |