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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 23 |
| 3 | 235 |
| 4 | 2357 |
| 5 | 12357 |
| 6 | 3 |
| 7 | 37 |
| 8 | 37 |
| 9 | 3 |
| 10 | 3 |
| 11 | 3 |
| 12 | 37 |
| 13 | 137 |
| 14 | 3 |
| 15 | 37 |
| 16 | 3 |
| 17 | 3 |
| 18 | 3 |
| 19 | 37 |
| 20 | 137 |
| 21 | 3 |
| 22 | 3 |
| 23 | 3 |
| 24 | 3 |
| 25 | 3 |
| 26 | 3 |
| 27 | 3 |
| 28 | 3 |
| 29 | 3 |
| 30 | 3 |
| 31 | 3 |
| 32 | 3 |
| 33 | 37 |
| 34 | 37 |
| 35 | 37 |
| 36 | 37 |
| 37 | 7 |
| 38 | 37 |
| 39 | 7 |
| 40 | 37 |
| 41 | 37 |
| 42 | 37 |
| 43 | 37 |
| 44 | 3 |
| 45 | 37 |
| 46 | 37 |
| 47 | 37 |
| 48 | 3 |
| 49 | 37 |
| 50 | 37 |
| 51 | 3 |
| 52 | 3 |
| 53 | 3 |
| 54 | 3 |
| 55 | 37 |
| 56 | 3 |
| 57 | 3 |
| 58 | 3 |
| 59 | 37 |
| 60 | 137 |
| 61 | 3 |
| 62 | 3 |
| 63 | 3 |
| 64 | 3 |
| 65 | 3 |
| 66 | 3 |
| 67 | 3 |
| 68 | 37 |
| 69 | 7 |
| 70 | 7 |
| 71 | 37 |
| 72 | 37 |
| 73 | 7 |
[2,23,235,2357,12357,3,37,37,3,3,3,37,137,3,37,3, 3,3,37,137,3,3,3,3,3,3,3,3,3,3,3,3,37,37,37,37,7, 37,7,37,37,37,37,3,37,37,37,3,37,37,3,3,3,3,37,3, 3,3,37,137,3,3,3,3,3,3,3,37,7,7,37,37,7] |