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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 7 |
| 3 | 23 |
| 4 | 89 |
| 5 | 353 |
| 6 | 1409 |
| 7 | 5623 |
| 8 | 22483 |
| 9 | 89923 |
| 10 | 359663 |
| 11 | 1438643 |
| 12 | 5754571 |
| 13 | 23018273 |
| 14 | 92073083 |
| 15 | 368292317 |
| 16 | 1473169213 |
| 17 | 5892676849 |
| 18 | 23570707387 |
| 19 | 94282829533 |
| 20 | 377131318127 |
| 21 | 1508525272477 |
| 22 | 6034101089897 |
| 23 | 24136404359569 |
| 24 | 96545617438253 |
| 25 | 386182469752993 |
| 26 | 1544729879011951 |
[2,7,23,89,353,1409,5623,22483,89923,359663, 1438643,5754571,23018273,92073083,368292317, 1473169213,5892676849,23570707387,94282829533, 377131318127,1508525272477,6034101089897, 24136404359569,96545617438253,386182469752993, 1544729879011951] |