n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 27 |
3 | 104 |
4 | 378 |
5 | 1327 |
6 | 4553 |
7 | 15351 |
8 | 51072 |
9 | 168147 |
10 | 548915 |
11 | 1779377 |
12 | 5734022 |
13 | 18384612 |
14 | 58688163 |
15 | 186632570 |
16 | 591509670 |
17 | 1869118923 |
18 | 5890466415 |
19 | 18518945789 |
20 | 58094637801 |
21 | 181884111404 |
22 | 568416743474 |
23 | 1773443888599 |
[1,7,27,104,378,1327,4553,15351,51072,168147, 548915,1779377,5734022,18384612,58688163, 186632570,591509670,1869118923,5890466415, 18518945789,58094637801,181884111404,568416743474, 1773443888599] |