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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | -1 |
| 5 | 2 |
| 6 | 0 |
| 7 | 0 |
| 8 | -1 |
| 9 | -2 |
| 10 | 3 |
| 11 | 0 |
| 12 | 0 |
| 13 | -2 |
| 14 | -3 |
| 15 | 6 |
| 16 | 0 |
| 17 | 0 |
| 18 | -3 |
| 19 | -6 |
| 20 | 11 |
| 21 | 0 |
| 22 | 0 |
| 23 | -6 |
| 24 | -10 |
| 25 | 18 |
| 26 | 0 |
| 27 | 0 |
| 28 | -9 |
| 29 | -16 |
| 30 | 28 |
| 31 | 0 |
| 32 | 0 |
| 33 | -14 |
| 34 | -25 |
| 35 | 44 |
| 36 | 0 |
| 37 | 0 |
| 38 | -22 |
| 39 | -38 |
| 40 | 67 |
| 41 | 0 |
| 42 | 0 |
| 43 | -32 |
| 44 | -57 |
| 45 | 100 |
| 46 | 0 |
| 47 | 0 |
| 48 | -48 |
| 49 | -84 |
| 50 | 146 |
| 51 | 0 |
| 52 | 0 |
| 53 | -70 |
| 54 | -121 |
| 55 | 210 |
| 56 | 0 |
| 57 | 0 |
| 58 | -99 |
| 59 | -172 |
| 60 | 299 |
| 61 | 0 |
| 62 | 0 |
| 63 | -140 |
| 64 | -243 |
| 65 | 420 |
| 66 | 0 |
[1,0,0,0,-1,2,0,0,-1,-2,3,0,0,-2,-3,6,0,0,-3,-6, 11,0,0,-6,-10,18,0,0,-9,-16,28,0,0,-14,-25,44,0,0, -22,-38,67,0,0,-32,-57,100,0,0,-48,-84,146,0,0, -70,-121,210,0,0,-99,-172,299,0,0,-140,-243,420,0] |