n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 48 |
5 | 2880 |
6 | 9953280 |
7 | 115579079884800 |
8 | 15266884236590834264309760000 |
9 | 262212473580148912869121218589990322256745385164800000000 |
[0,1,2,6,48,2880,9953280,115579079884800, 15266884236590834264309760000, 26221247358014891286912121858999032225674538516480\ 0000000] |