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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 14 |
| 3 | 5 |
| 4 | -1 |
| 5 | 5 |
| 6 | 17 |
| 7 | 11 |
| 8 | 16 |
| 9 | -1 |
| 10 | 10 |
| 11 | 10 |
| 12 | 6 |
| 13 | 3 |
| 14 | 36 |
| 15 | 12 |
| 16 | -1 |
| 17 | 6 |
| 18 | 7 |
| 19 | 13 |
| 20 | 37 |
| 21 | 16 |
| 22 | 4 |
| 23 | 26 |
| 24 | 52 |
| 25 | -1 |
| 26 | 2 |
| 27 | 12 |
| 28 | 6 |
| 29 | 9 |
| 30 | 11 |
| 31 | 13 |
| 32 | 16 |
| 33 | 14 |
| 34 | 4 |
| 35 | 5 |
| 36 | -1 |
| 37 | 2 |
| 38 | 8 |
| 39 | 18 |
| 40 | 10 |
| 41 | 3 |
| 42 | 4 |
| 43 | 12 |
| 44 | 10 |
| 45 | 3 |
| 46 | 20 |
| 47 | 9 |
| 48 | 6 |
| 49 | -1 |
| 50 | 2 |
| 51 | 48 |
| 52 | 6 |
| 53 | 4 |
| 54 | 49 |
| 55 | 11 |
| 56 | 32 |
| 57 | 13 |
| 58 | 9 |
| 59 | 15 |
| 60 | 19 |
| 61 | 4 |
| 62 | 5 |
| 63 | 21 |
| 64 | -1 |
| 65 | 2 |
| 66 | 5 |
| 67 | 24 |
| 68 | 17 |
| 69 | 3 |
| 70 | 6 |
| 71 | 19 |
| 72 | 16 |
| 73 | 5 |
| 74 | 3 |
| 75 | 4 |
| 76 | 11 |
| 77 | 17 |
| 78 | 7 |
| 79 | 19 |
| 80 | 9 |
[1,-1,14,5,-1,5,17,11,16,-1,10,10,6,3,36,12,-1,6, 7,13,37,16,4,26,52,-1,2,12,6,9,11,13,16,14,4,5,-1, 2,8,18,10,3,4,12,10,3,20,9,6,-1,2,48,6,4,49,11,32, 13,9,15,19,4,5,21,-1,2,5,24,17,3,6,19,16,5,3,4,11, 17,7,19,9] |