n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 22 |
3 | 128 |
4 | 771 |
5 | 4744 |
6 | 29618 |
7 | 186880 |
8 | 1188679 |
9 | 7608764 |
10 | 48953224 |
11 | 316283264 |
12 | 2050706932 |
13 | 13336273528 |
14 | 86953633242 |
15 | 568221290496 |
16 | 3720529001823 |
17 | 24403423540348 |
18 | 160314652983158 |
19 | 1054635453261568 |
20 | 6946703172803003 |
21 | 45809043607167328 |
22 | 302395650703501688 |
[1,4,22,128,771,4744,29618,186880,1188679,7608764, 48953224,316283264,2050706932,13336273528, 86953633242,568221290496,3720529001823, 24403423540348,160314652983158,1054635453261568, 6946703172803003,45809043607167328, 302395650703501688] |