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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 11 |
| 4 | 2 |
| 5 | -1 |
| 6 | 10 |
| 7 | 9 |
| 8 | 3 |
| 9 | 9 |
| 10 | -1 |
| 11 | 10 |
| 12 | 9 |
| 13 | 5 |
| 14 | 8 |
| 15 | -1 |
| 16 | 4 |
| 17 | 7 |
| 18 | 8 |
| 19 | 8 |
| 20 | -1 |
| 21 | 10 |
| 22 | 9 |
| 23 | 6 |
| 24 | 8 |
| 25 | -1 |
| 26 | 5 |
| 27 | 8 |
| 28 | 7 |
| 29 | 9 |
| 30 | -1 |
| 31 | 6 |
| 32 | 5 |
| 33 | 10 |
| 34 | 6 |
| 35 | -1 |
| 36 | 9 |
| 37 | 9 |
| 38 | 7 |
| 39 | 9 |
| 40 | -1 |
| 41 | 11 |
| 42 | 10 |
| 43 | 7 |
| 44 | 9 |
| 45 | -1 |
| 46 | 6 |
| 47 | 9 |
| 48 | 8 |
| 49 | 10 |
| 50 | -1 |
| 51 | 7 |
| 52 | 6 |
| 53 | 7 |
| 54 | 7 |
| 55 | -1 |
| 56 | 6 |
| 57 | 7 |
| 58 | 8 |
| 59 | 8 |
| 60 | -1 |
| 61 | 7 |
| 62 | 6 |
| 63 | 11 |
| 64 | 6 |
| 65 | -1 |
| 66 | 10 |
| 67 | 10 |
| 68 | 7 |
| 69 | 10 |
| 70 | -1 |
| 71 | 8 |
| 72 | 8 |
| 73 | 9 |
| 74 | 8 |
| 75 | -1 |
| 76 | 8 |
| 77 | 11 |
| 78 | 8 |
[0,1,11,2,-1,10,9,3,9,-1,10,9,5,8,-1,4,7,8,8,-1, 10,9,6,8,-1,5,8,7,9,-1,6,5,10,6,-1,9,9,7,9,-1,11, 10,7,9,-1,6,9,8,10,-1,7,6,7,7,-1,6,7,8,8,-1,7,6, 11,6,-1,10,10,7,10,-1,8,8,9,8,-1,8,11,8] |