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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 7 |
| 4 | 58 |
| 5 | 838 |
| 6 | 25171 |
| 7 | 1610977 |
| 8 | 214838128 |
| 9 | 58540023808 |
| 10 | 32208188445841 |
| 11 | 35543124039418147 |
| 12 | 78391002506394742198 |
| 13 | 344921660620756227029578 |
| 14 | 3025372940760065880037836511 |
| 15 | 52886001393832278158415800800117 |
| 16 | 1842588406743140390123203185385824268 |
| 17 | 127974225758895121562137768141145597226148 |
[1,7,58,838,25171,1610977,214838128,58540023808, 32208188445841,35543124039418147, 78391002506394742198,344921660620756227029578, 3025372940760065880037836511, 52886001393832278158415800800117, 1842588406743140390123203185385824268, 127974225758895121562137768141145597226148] |