n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 67 |
5 | 404 |
6 | 3904 |
7 | 64840 |
8 | 1930842 |
9 | 104698904 |
10 | 10401039400 |
11 | 1900637187280 |
12 | 641429385018832 |
13 | 401454435464761376 |
14 | 467919402404052870944 |
15 | 1019758699013228238271040 |
16 | 4171161230867751509749228304 |
[1,2,5,16,67,404,3904,64840,1930842,104698904, 10401039400,1900637187280,641429385018832, 401454435464761376,467919402404052870944, 1019758699013228238271040, 4171161230867751509749228304] |