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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 37 |
| 4 | 43 |
| 5 | 217 |
| 6 | 259 |
| 7 | 1297 |
| 8 | 1333 |
| 9 | 1555 |
| 10 | 7777 |
| 11 | 9331 |
| 12 | 46657 |
| 13 | 46873 |
| 14 | 47989 |
| 15 | 55987 |
| 16 | 279937 |
| 17 | 335923 |
| 18 | 1679617 |
| 19 | 1680913 |
| 20 | 1727605 |
| 21 | 2015539 |
| 22 | 10077697 |
| 23 | 10124569 |
| 24 | 12093235 |
| 25 | 60466177 |
| 26 | 60473953 |
| 27 | 62193781 |
| 28 | 72559411 |
| 29 | 362797057 |
| 30 | 435356467 |
| 31 | 2176782337 |
| 32 | 2176828993 |
| 33 | 2178463249 |
[1,7,37,43,217,259,1297,1333,1555,7777,9331,46657, 46873,47989,55987,279937,335923,1679617,1680913, 1727605,2015539,10077697,10124569,12093235, 60466177,60473953,62193781,72559411,362797057, 435356467,2176782337,2176828993,2178463249] |