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| n | a(n) |
|---|---|
| 1 | 31 |
| 2 | 71 |
| 3 | 383 |
| 4 | 503 |
| 5 | 743 |
| 6 | 983 |
| 7 | 1327 |
| 8 | 2543 |
| 9 | 4271 |
| 10 | 5711 |
| 11 | 6151 |
| 12 | 8543 |
| 13 | 9871 |
| 14 | 14503 |
| 15 | 17783 |
| 16 | 21191 |
| 17 | 22031 |
| 18 | 25463 |
| 19 | 35023 |
| 20 | 35759 |
| 21 | 36263 |
| 22 | 36559 |
| 23 | 40543 |
| 24 | 46471 |
| 25 | 47711 |
| 26 | 60727 |
| 27 | 66343 |
| 28 | 72551 |
| 29 | 73751 |
| 30 | 75767 |
| 31 | 81551 |
| 32 | 83639 |
| 33 | 91463 |
| 34 | 98327 |
| 35 | 142183 |
| 36 | 159407 |
| 37 | 160343 |
| 38 | 193031 |
| 39 | 195743 |
| 40 | 218623 |
[31,71,383,503,743,983,1327,2543,4271,5711,6151, 8543,9871,14503,17783,21191,22031,25463,35023, 35759,36263,36559,40543,46471,47711,60727,66343, 72551,73751,75767,81551,83639,91463,98327,142183, 159407,160343,193031,195743,218623] |