n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 42 |
4 | 1806 |
5 | 3263442 |
6 | 10650056950806 |
7 | 113423713055421844361000442 |
8 | 12864938683278671740537145998360961546653259485195806 |
[1,2,6,42,1806,3263442,10650056950806, 113423713055421844361000442, 12864938683278671740537145998360961546653259485195\ 806] |