n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 69 |
5 | 207 |
6 | 621 |
7 | 3345 |
8 | 4275 |
9 | 25497 |
10 | 38247 |
11 | 229173 |
12 | 589185 |
13 | 1669443 |
14 | 5205897 |
15 | 14045019 |
16 | 34319397 |
17 | 102566511 |
18 | 307313949 |
19 | 1843835217 |
20 | 2312645619 |
21 | 13776780249 |
22 | 20417442711 |
23 | 112792132341 |
24 | 290155405761 |
25 | 847524815523 |
26 | 2611222884297 |
27 | 7627711248315 |
[1,3,9,27,69,207,621,3345,4275,25497,38247,229173, 589185,1669443,5205897,14045019,34319397, 102566511,307313949,1843835217,2312645619, 13776780249,20417442711,112792132341,290155405761, 847524815523,2611222884297,7627711248315] |