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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 92 |
| 4 | 6662 |
| 5 | 2150552 |
| 6 | 3093730764 |
| 7 | 18251332286098 |
| 8 | 466740831542894470 |
| 9 | 47238803741195397513182 |
| 10 | 20522607409110459026633535856 |
| 11 | 34700017072200465774261952422246668 |
| 12 | 250699892545838622857396499800167790109260 |
| 13 | 6984916990466628202550631436961441381064765905022 |
[1,2,6,92,6662,2150552,3093730764,18251332286098, 466740831542894470,47238803741195397513182, 20522607409110459026633535856, 34700017072200465774261952422246668, 250699892545838622857396499800167790109260, 6984916990466628202550631436961441381064765905022] |