n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 24 |
4 | 144 |
5 | 541 |
6 | 3258 |
7 | 12275 |
8 | 74280 |
9 | 282003 |
10 | 1713690 |
11 | 6549906 |
12 | 39938616 |
13 | 153481299 |
14 | 938430990 |
15 | 3622111560 |
16 | 22195961280 |
17 | 85975792075 |
18 | 527816696850 |
19 | 2050493623760 |
20 | 12607504827600 |
21 | 49098707209695 |
22 | 302275142049870 |
23 | 1179633190545755 |
24 | 7270432009471224 |
25 | 28423658754983701 |
[1,6,24,144,541,3258,12275,74280,282003,1713690, 6549906,39938616,153481299,938430990,3622111560, 22195961280,85975792075,527816696850, 2050493623760,12607504827600,49098707209695, 302275142049870,1179633190545755,7270432009471224, 28423658754983701] |