n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 50 |
4 | 230 |
5 | 1059 |
6 | 5043 |
7 | 24073 |
8 | 116650 |
9 | 566294 |
10 | 2770564 |
11 | 13575457 |
12 | 66809023 |
13 | 329196128 |
14 | 1626369177 |
15 | 8042962723 |
16 | 39842574055 |
17 | 197525771175 |
18 | 980382103175 |
19 | 4869026293964 |
20 | 24201218678644 |
21 | 120351728434595 |
22 | 598854576465375 |
23 | 2981035269045935 |
24 | 14845798328053850 |
25 | 73957590749549226 |
26 | 368560458686376624 |
[1,3,12,50,230,1059,5043,24073,116650,566294, 2770564,13575457,66809023,329196128,1626369177, 8042962723,39842574055,197525771175,980382103175, 4869026293964,24201218678644,120351728434595, 598854576465375,2981035269045935, 14845798328053850,73957590749549226, 368560458686376624] |