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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 188 |
| 4 | 3941598 |
| 5 | 24934429725024 |
| 6 | 74171603795480180204640 |
| 7 | 150277870737901828652705825755721760 |
| 8 | 283839436431731355577562936415156522873876247241520 |
| 9 | 655934428473920614716696820356119117524334608980167506174657536026880 |
[1,1,2,188,3941598,24934429725024, 74171603795480180204640, 150277870737901828652705825755721760, 28383943643173135557756293641515652287387624724152\ 0, 65593442847392061471669682035611911752433460898016\ 7506174657536026880] |