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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 910 |
| 4 | 746200 |
| 5 | 5507702200 |
| 6 | 365876657146000 |
| 7 | 218747042884536166000 |
| 8 | 1177042838234827583459440000 |
| 9 | 57001313848230245122464621625840000 |
| 10 | 24843911488189148287648216529610193612000000 |
| 11 | 97453533413342456299179976631323547842824103012000000 |
[1,1,10,910,746200,5507702200,365876657146000, 218747042884536166000, 1177042838234827583459440000, 57001313848230245122464621625840000, 24843911488189148287648216529610193612000000, 97453533413342456299179976631323547842824103012000\ 000] |