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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 151 |
| 3 | 151 |
| 4 | 1990 |
| 5 | 6329 |
| 6 | 1990 |
| 7 | 27548 |
| 8 | 294983 |
| 9 | 294983 |
| 10 | 27548 |
| 11 | 383021 |
| 12 | 13804578 |
| 13 | 47155911 |
| 14 | 13804578 |
| 15 | 383021 |
| 16 | 5327971 |
| 17 | 643832706 |
| 18 | 7524874363 |
| 19 | 7524874363 |
| 20 | 643832706 |
| 21 | 5327971 |
| 22 | 74147694 |
| 23 | 30049504156 |
| 24 | 1197873588223 |
| 25 | 4089691428777 |
[15,151,151,1990,6329,1990,27548,294983,294983, 27548,383021,13804578,47155911,13804578,383021, 5327971,643832706,7524874363,7524874363,643832706, 5327971,74147694,30049504156,1197873588223, 4089691428777] |