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