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| n | a(n) |
|---|---|
| 2 | 3 |
| 3 | 2 |
| 4 | 7 |
| 5 | 13 |
| 6 | 21 |
| 7 | 41 |
| 8 | 91 |
| 9 | 269 |
| 10 | 419 |
| 11 | 921 |
| 12 | 2983 |
| 13 | 8519 |
| 14 | 18859 |
| 15 | 53611 |
| 16 | 136631 |
| 17 | 436341 |
[3,2,7,13,21,41,91,269,419,921,2983,8519,18859, 53611,136631,436341] |