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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 3 |
| 8 | 7 |
| 9 | 9 |
| 10 | 13 |
| 11 | 25 |
| 12 | 27 |
| 13 | 51 |
| 14 | 63 |
| 15 | 95 |
| 16 | 123 |
| 17 | 179 |
| 18 | 205 |
| 19 | 305 |
| 20 | 409 |
| 21 | 559 |
| 22 | 715 |
| 23 | 1009 |
| 24 | 1337 |
| 25 | 1869 |
[1,1,1,1,1,1,3,7,9,13,25,27,51,63,95,123,179,205, 305,409,559,715,1009,1337,1869] |