n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 6 |
4 | 41 |
5 | 365 |
6 | 3984 |
7 | 51499 |
8 | 769159 |
9 | 13031514 |
10 | 246925295 |
11 | 5173842311 |
12 | 118776068256 |
13 | 2964697094281 |
14 | 79937923931761 |
15 | 2315462770608870 |
16 | 71705109685449689 |
17 | 2364107330976587909 |
18 | 82676528225908987824 |
19 | 3056806370495613000259 |
20 | 119137361202296994159415 |
[1,1,6,41,365,3984,51499,769159,13031514, 246925295,5173842311,118776068256,2964697094281, 79937923931761,2315462770608870,71705109685449689, 2364107330976587909,82676528225908987824, 3056806370495613000259,119137361202296994159415] |