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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 0 |
| 12 | 1 |
| 13 | 1 |
| 14 | 0 |
| 15 | 1 |
| 16 | 2 |
| 17 | 0 |
| 18 | 2 |
| 19 | 2 |
| 20 | 1 |
| 21 | 2 |
| 22 | 3 |
| 23 | 2 |
| 24 | 3 |
| 25 | 4 |
| 26 | 3 |
| 27 | 4 |
| 28 | 6 |
| 29 | 4 |
| 30 | 6 |
| 31 | 8 |
| 32 | 6 |
| 33 | 9 |
| 34 | 10 |
| 35 | 9 |
| 36 | 12 |
| 37 | 14 |
| 38 | 13 |
| 39 | 16 |
| 40 | 19 |
| 41 | 18 |
| 42 | 22 |
| 43 | 26 |
| 44 | 24 |
| 45 | 30 |
| 46 | 34 |
| 47 | 34 |
| 48 | 40 |
| 49 | 45 |
| 50 | 46 |
| 51 | 53 |
| 52 | 60 |
| 53 | 62 |
| 54 | 70 |
| 55 | 79 |
| 56 | 82 |
| 57 | 93 |
| 58 | 104 |
| 59 | 108 |
| 60 | 122 |
| 61 | 136 |
| 62 | 142 |
| 63 | 160 |
| 64 | 176 |
| 65 | 186 |
| 66 | 208 |
| 67 | 228 |
| 68 | 243 |
| 69 | 268 |
[0,1,-1,1,0,0,0,1,0,0,1,0,1,1,0,1,2,0,2,2,1,2,3,2, 3,4,3,4,6,4,6,8,6,9,10,9,12,14,13,16,19,18,22,26, 24,30,34,34,40,45,46,53,60,62,70,79,82,93,104,108, 122,136,142,160,176,186,208,228,243,268] |