n | a(n) |
---|---|
2 | 3 |
3 | 18 |
4 | 97 |
5 | 530 |
6 | 2973 |
7 | 17059 |
8 | 99657 |
9 | 590562 |
10 | 3540463 |
11 | 21430266 |
12 | 130771375 |
13 | 803538099 |
14 | 4967127735 |
15 | 30866224823 |
16 | 192696614729 |
17 | 1207967820098 |
18 | 7600482116931 |
19 | 47981452358200 |
20 | 303820299643137 |
21 | 1929099000980218 |
22 | 12279621792772821 |
23 | 78346444891033855 |
[3,18,97,530,2973,17059,99657,590562,3540463, 21430266,130771375,803538099,4967127735, 30866224823,192696614729,1207967820098, 7600482116931,47981452358200,303820299643137, 1929099000980218,12279621792772821, 78346444891033855] |