n | a(n) |
---|---|
1 | 3 |
2 | 3 |
3 | 18 |
4 | 63 |
5 | 243 |
6 | 918 |
7 | 3483 |
8 | 13203 |
9 | 50058 |
10 | 189783 |
11 | 719523 |
12 | 2727918 |
13 | 10342323 |
14 | 39210723 |
15 | 148659138 |
16 | 563609583 |
17 | 2136806163 |
18 | 8101247238 |
19 | 30714160203 |
20 | 116446222323 |
21 | 441481147578 |
22 | 1673782109703 |
23 | 6345789771843 |
24 | 24058715644638 |
25 | 91213516249443 |
26 | 345816695682243 |
[3,3,18,63,243,918,3483,13203,50058,189783,719523, 2727918,10342323,39210723,148659138,563609583, 2136806163,8101247238,30714160203,116446222323, 441481147578,1673782109703,6345789771843, 24058715644638,91213516249443,345816695682243] |