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| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | -1 |
| 2 | -1 |
| 3 | -1 |
| 4 | 1 |
| 5 | -1 |
| 6 | -1 |
| 7 | 5 |
| 8 | 5 |
| 9 | -1 |
| 10 | -1 |
| 11 | 11 |
| 12 | 29 |
| 13 | 11 |
| 14 | -1 |
| 15 | -1 |
| 16 | 19 |
| 17 | 89 |
| 18 | 89 |
| 19 | 19 |
| 20 | -1 |
| 21 | -1 |
| 22 | 29 |
| 23 | 209 |
| 24 | 379 |
| 25 | 209 |
| 26 | 29 |
| 27 | -1 |
| 28 | -1 |
| 29 | 41 |
| 30 | 419 |
| 31 | 1189 |
| 32 | 1189 |
| 33 | 419 |
| 34 | 41 |
| 35 | -1 |
| 36 | -1 |
| 37 | 55 |
| 38 | 755 |
| 39 | 3079 |
| 40 | 4829 |
| 41 | 3079 |
| 42 | 755 |
| 43 | 55 |
| 44 | -1 |
| 45 | -1 |
| 46 | 71 |
| 47 | 1259 |
| 48 | 6971 |
| 49 | 15749 |
| 50 | 15749 |
| 51 | 6971 |
| 52 | 1259 |
| 53 | 71 |
| 54 | -1 |
| 55 | -1 |
| 56 | 89 |
| 57 | 1979 |
| 58 | 14279 |
| 59 | 43889 |
| 60 | 63251 |
| 61 | 43889 |
| 62 | 14279 |
| 63 | 1979 |
| 64 | 89 |
| 65 | -1 |
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