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| n | a(n) |
|---|---|
| 1 | 17 |
| 2 | 7 |
| 3 | 179 |
| 4 | 477 |
| 5 | 707 |
| 6 | 6935 |
| 7 | 15477 |
| 8 | 44197 |
| 9 | 535677 |
| 10 | 693368 |
| 11 | 2028209 |
| 12 | 7566137 |
| 13 | 32215777 |
| 14 | 62446477 |
| 15 | 322024127 |
| 16 | 2027400657 |
| 17 | 5171307877 |
| 18 | 15373346477 |
| 19 | 28575396477 |
| 20 | 237304541491 |
| 21 | 322033146477 |
| 22 | 5105022776547 |
| 23 | 4536383124177 |
[17,7,179,477,707,6935,15477,44197,535677,693368, 2028209,7566137,32215777,62446477,322024127, 2027400657,5171307877,15373346477,28575396477, 237304541491,322033146477,5105022776547, 4536383124177] |