n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 121 |
5 | 403 |
6 | 1209 |
7 | 3627 |
8 | 14921 |
9 | 52803 |
10 | 162409 |
11 | 491227 |
12 | 2273721 |
13 | 7225203 |
14 | 22083609 |
15 | 106254827 |
16 | 319172521 |
17 | 957521603 |
18 | 2953364809 |
19 | 12940502427 |
20 | 42902311321 |
21 | 132707334003 |
22 | 402122410009 |
23 | 2010408030027 |
24 | 6031224090121 |
25 | 18093712270403 |
26 | 54285137211209 |
[1,3,9,27,121,403,1209,3627,14921,52803,162409, 491227,2273721,7225203,22083609,106254827, 319172521,957521603,2953364809,12940502427, 42902311321,132707334003,402122410009, 2010408030027,6031224090121,18093712270403, 54285137211209] |