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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 23 |
| 4 | 31 |
| 5 | 47 |
| 6 | 71 |
| 7 | 191 |
| 8 | 311 |
| 9 | 367 |
| 10 | 503 |
| 11 | 607 |
| 12 | 967 |
| 13 | 1303 |
| 14 | 1367 |
| 15 | 1439 |
| 16 | 1471 |
| 17 | 1663 |
| 18 | 1871 |
| 19 | 2399 |
| 20 | 4951 |
| 21 | 5471 |
| 22 | 5623 |
| 23 | 6263 |
| 24 | 9431 |
| 25 | 10103 |
| 26 | 10271 |
| 27 | 10687 |
| 28 | 12119 |
| 29 | 12511 |
| 30 | 14431 |
| 31 | 14879 |
| 32 | 15647 |
| 33 | 21871 |
| 34 | 22111 |
| 35 | 22271 |
| 36 | 22807 |
| 37 | 23039 |
| 38 | 24223 |
| 39 | 24919 |
[3,7,23,31,47,71,191,311,367,503,607,967,1303, 1367,1439,1471,1663,1871,2399,4951,5471,5623,6263, 9431,10103,10271,10687,12119,12511,14431,14879, 15647,21871,22111,22271,22807,23039,24223,24919] |