n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 65 |
3 | 585 |
4 | 4097 |
5 | 36873 |
6 | 266305 |
7 | 2396745 |
8 | 16777217 |
9 | 150994953 |
10 | 1090519105 |
11 | 9814671945 |
12 | 68736258049 |
13 | 618626322441 |
14 | 4467856773185 |
15 | 40210710958665 |
16 | 281474976710657 |
17 | 2533274790395913 |
18 | 18295873486192705 |
19 | 164662861375734345 |
[1,9,65,585,4097,36873,266305,2396745,16777217, 150994953,1090519105,9814671945,68736258049, 618626322441,4467856773185,40210710958665, 281474976710657,2533274790395913, 18295873486192705,164662861375734345] |