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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 217 |
| 4 | 3937 |
| 5 | 6727 |
| 6 | 6847 |
| 7 | 51943 |
| 8 | 170671 |
| 9 | 330337 |
| 10 | 385687 |
| 11 | 2484247 |
| 12 | 2566537 |
| 13 | 2904007 |
| 14 | 3020857 |
| 15 | 3696967 |
| 16 | 6465577 |
| 17 | 9405337 |
| 18 | 12021439 |
| 19 | 19384207 |
[1,7,217,3937,6727,6847,51943,170671,330337, 385687,2484247,2566537,2904007,3020857,3696967, 6465577,9405337,12021439,19384207] |