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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -1 |
| 3 | -1 |
| 4 | -1 |
| 5 | -1 |
| 6 | -2 |
| 7 | -1 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 1 |
| 12 | 2 |
| 13 | 3 |
| 14 | 3 |
| 15 | 4 |
| 16 | 6 |
| 17 | 6 |
| 18 | 5 |
| 19 | 6 |
| 20 | 7 |
| 21 | 6 |
| 22 | 5 |
| 23 | 5 |
| 24 | 5 |
| 25 | 3 |
| 26 | 0 |
| 27 | -2 |
| 28 | -3 |
| 29 | -6 |
| 30 | -11 |
| 31 | -13 |
| 32 | -14 |
| 33 | -19 |
| 34 | -24 |
| 35 | -27 |
| 36 | -29 |
| 37 | -33 |
| 38 | -38 |
| 39 | -40 |
| 40 | -40 |
| 41 | -43 |
| 42 | -47 |
| 43 | -46 |
| 44 | -43 |
| 45 | -43 |
| 46 | -43 |
| 47 | -38 |
| 48 | -30 |
| 49 | -26 |
| 50 | -22 |
| 51 | -12 |
| 52 | 1 |
| 53 | 11 |
| 54 | 20 |
| 55 | 36 |
| 56 | 56 |
| 57 | 71 |
| 58 | 85 |
| 59 | 106 |
| 60 | 130 |
| 61 | 149 |
| 62 | 166 |
| 63 | 190 |
| 64 | 217 |
[1,0,-1,-1,-1,-1,-2,-1,0,0,0,1,2,3,3,4,6,6,5,6,7, 6,5,5,5,3,0,-2,-3,-6,-11,-13,-14,-19,-24,-27,-29, -33,-38,-40,-40,-43,-47,-46,-43,-43,-43,-38,-30, -26,-22,-12,1,11,20,36,56,71,85,106,130,149,166, 190,217] |