n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 25 |
5 | 211 |
6 | 2296 |
7 | 30619 |
8 | 482455 |
9 | 8768596 |
10 | 180603511 |
11 | 4157281129 |
12 | 105764735440 |
13 | 2946911156281 |
14 | 89247262497121 |
15 | 2919028298593684 |
16 | 102543779766289705 |
17 | 3850690682004992491 |
18 | 153927330069247143976 |
19 | 6525942204725963508259 |
20 | 292483420180063453725175 |
[1,1,4,25,211,2296,30619,482455,8768596,180603511, 4157281129,105764735440,2946911156281, 89247262497121,2919028298593684, 102543779766289705,3850690682004992491, 153927330069247143976,6525942204725963508259, 292483420180063453725175] |