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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 165 |
| 3 | 2275 |
| 4 | 18473 |
| 5 | 45617 |
| 6 | 71383 |
| 7 | 257393 |
| 8 | 257393 |
| 9 | 1239907 |
| 10 | 1275797 |
| 11 | 1851847 |
| 12 | 4411843 |
| 13 | 6865337 |
| 14 | 6865337 |
| 15 | 8312467 |
| 16 | 15763207 |
| 17 | 24157963 |
| 18 | 33684317 |
| 19 | 33684317 |
| 20 | 60428597 |
| 21 | 61182103 |
| 22 | 61694813 |
| 23 | 73803517 |
| 24 | 104622971 |
| 25 | 128397967 |
| 26 | 128397967 |
| 27 | 173805187 |
| 28 | 214820797 |
| 29 | 284708981 |
[4,165,2275,18473,45617,71383,257393,257393, 1239907,1275797,1851847,4411843,6865337,6865337, 8312467,15763207,24157963,33684317,33684317, 60428597,61182103,61694813,73803517,104622971, 128397967,128397967,173805187,214820797,284708981] |