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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 59 |
| 4 | 137 |
| 5 | 277 |
| 6 | 313 |
| 7 | 499 |
| 8 | 563 |
| 9 | 619 |
| 10 | 719 |
| 11 | 787 |
| 12 | 797 |
| 13 | 919 |
| 14 | 937 |
| 15 | 971 |
| 16 | 1013 |
| 17 | 1217 |
| 18 | 1283 |
| 19 | 1373 |
| 20 | 1409 |
| 21 | 1439 |
| 22 | 1451 |
| 23 | 1621 |
| 24 | 1747 |
| 25 | 1789 |
| 26 | 2207 |
| 27 | 2237 |
| 28 | 2267 |
| 29 | 2393 |
| 30 | 2417 |
| 31 | 2441 |
| 32 | 2591 |
| 33 | 2707 |
| 34 | 2797 |
| 35 | 2801 |
| 36 | 2939 |
| 37 | 2999 |
| 38 | 3251 |
| 39 | 3529 |
| 40 | 3769 |
| 41 | 3847 |
| 42 | 4201 |
| 43 | 4441 |
| 44 | 4447 |
| 45 | 4597 |
| 46 | 4643 |
| 47 | 4721 |
[3,7,59,137,277,313,499,563,619,719,787,797,919, 937,971,1013,1217,1283,1373,1409,1439,1451,1621, 1747,1789,2207,2237,2267,2393,2417,2441,2591,2707, 2797,2801,2939,2999,3251,3529,3769,3847,4201,4441, 4447,4597,4643,4721] |