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| n | a(n) |
|---|---|
| 1 | 23 |
| 2 | 43 |
| 3 | 223 |
| 4 | 229 |
| 5 | 233 |
| 6 | 239 |
| 7 | 241 |
| 8 | 257 |
| 9 | 263 |
| 10 | 421 |
| 11 | 433 |
| 12 | 439 |
| 13 | 443 |
| 14 | 449 |
| 15 | 457 |
| 16 | 463 |
| 17 | 521 |
| 18 | 541 |
| 19 | 1249 |
| 20 | 1259 |
| 21 | 1283 |
| 22 | 1289 |
| 23 | 1429 |
| 24 | 1459 |
| 25 | 1483 |
| 26 | 1489 |
| 27 | 1523 |
| 28 | 1543 |
| 29 | 1721 |
| 30 | 1741 |
| 31 | 2003 |
| 32 | 2029 |
| 33 | 2099 |
| 34 | 2111 |
| 35 | 2153 |
| 36 | 2221 |
| 37 | 2243 |
| 38 | 2251 |
| 39 | 2281 |
| 40 | 2293 |
| 41 | 2339 |
| 42 | 2347 |
| 43 | 2357 |
| 44 | 2411 |
| 45 | 2417 |
| 46 | 2423 |
[23,43,223,229,233,239,241,257,263,421,433,439, 443,449,457,463,521,541,1249,1259,1283,1289,1429, 1459,1483,1489,1523,1543,1721,1741,2003,2029,2099, 2111,2153,2221,2243,2251,2281,2293,2339,2347,2357, 2411,2417,2423] |