n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 9 |
5 | 33 |
6 | 127 |
7 | 519 |
8 | 2189 |
9 | 9489 |
10 | 41953 |
11 | 188531 |
12 | 858441 |
13 | 3952133 |
14 | 18365543 |
15 | 86031567 |
16 | 405819137 |
17 | 1925991665 |
18 | 9189984561 |
19 | 44061194915 |
20 | 212159132049 |
21 | 1025525299369 |
22 | 4974525125023 |
23 | 24206966311287 |
24 | 118138984314029 |
[1,1,3,9,33,127,519,2189,9489,41953,188531,858441, 3952133,18365543,86031567,405819137,1925991665, 9189984561,44061194915,212159132049,1025525299369, 4974525125023,24206966311287,118138984314029] |