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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 25 |
| 3 | 55 |
| 4 | 145 |
| 5 | 487 |
| 6 | 1585 |
| 7 | 3995 |
| 8 | 7795 |
| 9 | 7795 |
| 10 | 7795 |
| 11 | 7795 |
| 12 | 222785 |
| 13 | 222785 |
| 14 | 349065 |
| 15 | 383905 |
[1,25,55,145,487,1585,3995,7795,7795,7795,7795, 222785,222785,349065,383905] |