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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | -1 |
| 5 | 3 |
| 6 | 0 |
| 7 | 0 |
| 8 | -3 |
| 9 | 6 |
| 10 | 0 |
| 11 | -1 |
| 12 | 1 |
| 13 | -6 |
| 14 | 10 |
| 15 | 0 |
| 16 | 2 |
| 17 | -6 |
| 18 | 4 |
| 19 | -10 |
| 20 | 15 |
| 21 | 0 |
| 22 | -2 |
| 23 | 10 |
| 24 | -18 |
| 25 | 10 |
| 26 | -15 |
| 27 | 21 |
| 28 | 0 |
| 29 | 2 |
| 30 | -12 |
| 31 | 31 |
| 32 | -41 |
| 33 | 20 |
| 34 | -21 |
| 35 | 28 |
| 36 | 0 |
| 37 | -1 |
| 38 | 11 |
| 39 | -41 |
| 40 | 76 |
| 41 | -80 |
| 42 | 35 |
| 43 | -28 |
| 44 | 36 |
| 45 | 0 |
| 46 | 2 |
| 47 | -6 |
| 48 | 37 |
| 49 | -109 |
| 50 | 161 |
| 51 | -141 |
| 52 | 56 |
| 53 | -36 |
| 54 | 45 |
| 55 | 0 |
| 56 | 0 |
| 57 | 9 |
| 58 | -29 |
| 59 | 110 |
| 60 | -251 |
| 61 | 308 |
| 62 | -231 |
| 63 | 84 |
| 64 | -45 |
| 65 | 55 |
[0,0,1,0,-1,3,0,0,-3,6,0,-1,1,-6,10,0,2,-6,4,-10, 15,0,-2,10,-18,10,-15,21,0,2,-12,31,-41,20,-21,28, 0,-1,11,-41,76,-80,35,-28,36,0,2,-6,37,-109,161, -141,56,-36,45,0,0,9,-29,110,-251,308,-231,84,-45, 55] |