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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4620 |
| 2 | 89237148 |
| 3 | 2005604901300 |
| 4 | 47913489552349980 |
| 5 | 1183237138556438547120 |
| 6 | 29836408028165719837829700 |
| 7 | 763223193205837155576920270520 |
| 8 | 19728995249931089572476730815356700 |
| 9 | 514073874001824145407534840409364592528 |
| 10 | 13479596359042448208364688886016106250225648 |
[1,4620,89237148,2005604901300,47913489552349980, 1183237138556438547120,29836408028165719837829700, 763223193205837155576920270520, 19728995249931089572476730815356700, 514073874001824145407534840409364592528, 13479596359042448208364688886016106250225648] |