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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 5 |
| 4 | 7 |
| 5 | 175 |
| 6 | 7601 |
| 7 | 35035 |
| 8 | 3620617 |
| 9 | 533203385 |
| 10 | 5132341123 |
| 11 | 1381418533495 |
| 12 | 19315437152429 |
| 13 | 318022715945935 |
| 14 | 176611180730425441 |
| 15 | 120653354922346558325 |
| 16 | 3031735699207849905271 |
| 17 | 86163723379372590236285 |
| 18 | 101750602671765022556964427 |
| 19 | 3623786261867543729253761465 |
[1,1,1,5,7,175,7601,35035,3620617,533203385, 5132341123,1381418533495,19315437152429, 318022715945935,176611180730425441, 120653354922346558325,3031735699207849905271, 86163723379372590236285, 101750602671765022556964427, 3623786261867543729253761465] |