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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 17 |
| 7 | 49 |
| 8 | 273 |
| 9 | 1285 |
| 10 | 6059 |
| 11 | 40935 |
| 12 | 430893 |
| 13 | 4529543 |
| 14 | 70592583 |
| 15 | 1153559653 |
| 16 | 26967984571 |
[1,1,1,1,1,17,49,273,1285,6059,40935,430893, 4529543,70592583,1153559653,26967984571] |