| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 17 |
| 3 | 47 |
| 4 | 67 |
| 5 | 71 |
| 6 | 79 |
| 7 | 97 |
| 8 | 107 |
| 9 | 167 |
| 10 | 179 |
| 11 | 197 |
| 12 | 467 |
| 13 | 479 |
| 14 | 487 |
| 15 | 607 |
| 16 | 617 |
| 17 | 647 |
| 18 | 677 |
| 19 | 701 |
| 20 | 709 |
| 21 | 719 |
| 22 | 761 |
| 23 | 769 |
| 24 | 787 |
| 25 | 797 |
| 26 | 877 |
| 27 | 887 |
| 28 | 907 |
| 29 | 947 |
| 30 | 967 |
| 31 | 971 |
| 32 | 977 |
| 33 | 997 |
| 34 | 1087 |
| 35 | 1097 |
| 36 | 1117 |
| 37 | 1171 |
| 38 | 1187 |
| 39 | 1447 |
| 40 | 1471 |
| 41 | 1487 |
| 42 | 1607 |
| 43 | 1667 |
| 44 | 1697 |
| 45 | 1709 |
| 46 | 1741 |
| 47 | 1747 |
| 48 | 1777 |
| 49 | 1787 |
| 50 | 1789 |
[7,17,47,67,71,79,97,107,167,179,197,467,479,487, 607,617,647,677,701,709,719,761,769,787,797,877, 887,907,947,967,971,977,997,1087,1097,1117,1171, 1187,1447,1471,1487,1607,1667,1697,1709,1741,1747, 1777,1787,1789] |