n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 211 |
5 | 633 |
6 | 1899 |
7 | 5697 |
8 | 52297 |
9 | 156891 |
10 | 470673 |
11 | 1412019 |
12 | 12675403 |
13 | 38026209 |
14 | 114078627 |
15 | 342235881 |
16 | 3081171505 |
17 | 9243514515 |
18 | 27730543545 |
19 | 83191630635 |
20 | 748691121283 |
21 | 2246073363849 |
22 | 6738220091547 |
[1,3,9,27,211,633,1899,5697,52297,156891,470673, 1412019,12675403,38026209,114078627,342235881, 3081171505,9243514515,27730543545,83191630635, 748691121283,2246073363849,6738220091547] |