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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 17 |
| 4 | 28 |
| 5 | 424 |
| 6 | 889 |
| 7 | 2041 |
| 8 | 2056 |
| 9 | 2569 |
| 10 | 3667 |
| 11 | 3988 |
| 12 | 7553 |
| 13 | 8351 |
| 14 | 13349 |
| 15 | 28304 |
| 16 | 28484 |
| 17 | 38161 |
| 18 | 41531 |
| 19 | 60071 |
| 20 | 126511 |
| 21 | 444164 |
| 22 | 588913 |
| 23 | 681079 |
| 24 | 2083457 |
| 25 | 4753388 |
| 26 | 7801841 |
[1,7,17,28,424,889,2041,2056,2569,3667,3988,7553, 8351,13349,28304,28484,38161,41531,60071,126511, 444164,588913,681079,2083457,4753388,7801841] |