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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 17 |
| 3 | 67 |
| 4 | 211 |
| 5 | 631 |
| 6 | 1051 |
| 7 | 1811 |
| 8 | 1951 |
| 9 | 2287 |
| 10 | 2791 |
| 11 | 3331 |
| 12 | 7297 |
| 13 | 10099 |
| 14 | 13597 |
| 15 | 15739 |
| 16 | 19717 |
| 17 | 21169 |
| 18 | 22153 |
| 19 | 41341 |
| 20 | 85933 |
| 21 | 400051 |
| 22 | 2251201 |
| 23 | 2991253 |
| 24 | 3051751 |
| 25 | 4244791 |
| 26 | 5713891 |
[2,17,67,211,631,1051,1811,1951,2287,2791,3331, 7297,10099,13597,15739,19717,21169,22153,41341, 85933,400051,2251201,2991253,3051751,4244791, 5713891] |