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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 7 |
| 3 | 11 |
| 4 | 19 |
| 5 | 31 |
| 6 | 47 |
| 7 | 53 |
| 8 | 59 |
| 9 | 67 |
| 10 | 73 |
| 11 | 79 |
| 12 | 107 |
| 13 | 149 |
| 14 | 173 |
| 15 | 191 |
| 16 | 193 |
| 17 | 233 |
| 18 | 241 |
| 19 | 317 |
| 20 | 353 |
| 21 | 383 |
| 22 | 397 |
| 23 | 457 |
| 24 | 691 |
| 25 | 739 |
| 26 | 823 |
| 27 | 863 |
| 28 | 919 |
| 29 | 947 |
| 30 | 971 |
| 31 | 1019 |
| 32 | 1171 |
| 33 | 1187 |
| 34 | 1229 |
| 35 | 1249 |
| 36 | 1321 |
| 37 | 1361 |
| 38 | 1367 |
| 39 | 1381 |
| 40 | 1409 |
| 41 | 1439 |
| 42 | 1579 |
| 43 | 1601 |
| 44 | 1663 |
| 45 | 1669 |
| 46 | 1747 |
| 47 | 1783 |
| 48 | 1873 |
| 49 | 1907 |
| 50 | 1949 |
| 51 | 1951 |
[5,7,11,19,31,47,53,59,67,73,79,107,149,173,191, 193,233,241,317,353,383,397,457,691,739,823,863, 919,947,971,1019,1171,1187,1229,1249,1321,1361, 1367,1381,1409,1439,1579,1601,1663,1669,1747,1783, 1873,1907,1949,1951] |