n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 9 |
3 | 17 |
4 | 153 |
5 | 353 |
6 | 3177 |
7 | 8113 |
8 | 73017 |
9 | 198401 |
10 | 1785609 |
11 | 5060433 |
12 | 45543897 |
13 | 133071009 |
14 | 1197639081 |
15 | 3581326065 |
16 | 32231934585 |
17 | 98156060225 |
18 | 883404542025 |
19 | 2730108129937 |
20 | 24570973169433 |
21 | 76862217117665 |
22 | 691759954058985 |
[1,1,9,17,153,353,3177,8113,73017,198401,1785609, 5060433,45543897,133071009,1197639081,3581326065, 32231934585,98156060225,883404542025, 2730108129937,24570973169433,76862217117665, 691759954058985] |