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| n | a(n) |
|---|---|
| 1 | 257 |
| 2 | 523 |
| 3 | 1123 |
| 4 | 1153 |
| 5 | 1327 |
| 6 | 1373 |
| 7 | 1723 |
| 8 | 1753 |
| 9 | 1973 |
| 10 | 2113 |
| 11 | 2137 |
| 12 | 2237 |
| 13 | 2293 |
| 14 | 2297 |
| 15 | 2311 |
| 16 | 2341 |
| 17 | 2347 |
| 18 | 2357 |
| 19 | 2371 |
| 20 | 2377 |
| 21 | 2383 |
| 22 | 2389 |
| 23 | 2417 |
| 24 | 2437 |
| 25 | 2473 |
| 26 | 2477 |
| 27 | 2531 |
| 28 | 2543 |
| 29 | 2579 |
| 30 | 2593 |
| 31 | 2617 |
| 32 | 2677 |
| 33 | 2711 |
| 34 | 2713 |
| 35 | 2719 |
| 36 | 2729 |
| 37 | 2731 |
| 38 | 2741 |
| 39 | 2753 |
| 40 | 2767 |
| 41 | 2789 |
| 42 | 2797 |
[257,523,1123,1153,1327,1373,1723,1753,1973,2113, 2137,2237,2293,2297,2311,2341,2347,2357,2371,2377, 2383,2389,2417,2437,2473,2477,2531,2543,2579,2593, 2617,2677,2711,2713,2719,2729,2731,2741,2753,2767, 2789,2797] |