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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 17 |
| 3 | 31 |
| 4 | 41 |
| 5 | 29 |
| 6 | 73 |
| 7 | 37 |
| 8 | 41 |
| 9 | 61 |
| 10 | 89 |
| 11 | 53 |
| 12 | 73 |
| 13 | 61 |
| 14 | 151 |
| 15 | 109 |
| 16 | 73 |
| 17 | 157 |
| 18 | 97 |
| 19 | 101 |
| 20 | 89 |
| 21 | 109 |
| 22 | 97 |
| 23 | 101 |
| 24 | 241 |
| 25 | 109 |
| 26 | 113 |
| 27 | 157 |
| 28 | 137 |
| 29 | -1 |
| 30 | 241 |
| 31 | 149 |
| 32 | 137 |
| 33 | 157 |
| 34 | 257 |
| 35 | 149 |
| 36 | 193 |
| 37 | 157 |
| 38 | 367 |
| 39 | 181 |
| 40 | 281 |
| 41 | 173 |
| 42 | 193 |
| 43 | 181 |
| 44 | 421 |
| 45 | 229 |
| 46 | 193 |
| 47 | 197 |
| 48 | 241 |
| 49 | 317 |
| 50 | 499 |
| 51 | 229 |
| 52 | 233 |
| 53 | -1 |
| 54 | 241 |
| 55 | 229 |
| 56 | 233 |
| 57 | 277 |
| 58 | 241 |
| 59 | -1 |
| 60 | 409 |
| 61 | 269 |
| 62 | 257 |
| 63 | 277 |
[13,17,31,41,29,73,37,41,61,89,53,73,61,151,109, 73,157,97,101,89,109,97,101,241,109,113,157,137, -1,241,149,137,157,257,149,193,157,367,181,281, 173,193,181,421,229,193,197,241,317,499,229,233, -1,241,229,233,277,241,-1,409,269,257,277] |