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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 3072 |
| 3 | 4682022912 |
| 4 | 62745927042654535680 |
| 5 | 22033340103629170301586112512000000 |
| 6 | 479715049773154880180722813201712394999926095872000000 |
| 7 | 1318058833735625830065875826842622254472987373414662267314001234660163584000000 |
[1,4,3072,4682022912,62745927042654535680, 22033340103629170301586112512000000, 47971504977315488018072281320171239499992609587200\ 0000, 13180588337356258300658758268426222544729873734146\ 62267314001234660163584000000] |