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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 4 |
| 8 | 1 |
| 9 | 11 |
| 10 | 3 |
| 11 | 36 |
| 12 | 8 |
| 13 | 178 |
| 14 | 27 |
| 15 | 1006 |
| 16 | 96 |
| 17 | 7478 |
| 18 | 569 |
| 19 | 70926 |
| 20 | 4093 |
| 21 | 898687 |
| 22 | 37611 |
| 23 | 14257237 |
| 24 | 421080 |
| 25 | 292647869 |
| 26 | 6366190 |
| 27 | 7706237478 |
| 28 | 123605120 |
| 29 | 263373760591 |
| 30 | 3088656877 |
[1,1,1,1,2,1,4,1,11,3,36,8,178,27,1006,96,7478, 569,70926,4093,898687,37611,14257237,421080, 292647869,6366190,7706237478,123605120, 263373760591,3088656877] |