n | a(n) |
---|---|
1 | 3 |
2 | 13 |
3 | 30 |
4 | 91 |
5 | 280 |
6 | 785 |
7 | 2319 |
8 | 6816 |
9 | 19796 |
10 | 57991 |
11 | 169568 |
12 | 495194 |
13 | 1447954 |
14 | 4232103 |
15 | 12368507 |
16 | 36153433 |
17 | 105669553 |
18 | 308852290 |
19 | 902733635 |
20 | 2638539016 |
21 | 7712024753 |
22 | 22541039139 |
23 | 65883825698 |
24 | 192567918338 |
25 | 562845326527 |
26 | 1645106908766 |
[3,13,30,91,280,785,2319,6816,19796,57991,169568, 495194,1447954,4232103,12368507,36153433, 105669553,308852290,902733635,2638539016, 7712024753,22541039139,65883825698,192567918338, 562845326527,1645106908766] |