n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 14 |
4 | 38 |
5 | 110 |
6 | 326 |
7 | 974 |
8 | 2918 |
9 | 8750 |
10 | 26246 |
11 | 78734 |
12 | 236198 |
13 | 708590 |
14 | 2125766 |
15 | 6377294 |
16 | 19131878 |
17 | 57395630 |
18 | 172186886 |
19 | 516560654 |
20 | 1549681958 |
21 | 4649045870 |
22 | 13947137606 |
23 | 41841412814 |
24 | 125524238438 |
25 | 376572715310 |
26 | 1129718145926 |
[3,6,14,38,110,326,974,2918,8750,26246,78734, 236198,708590,2125766,6377294,19131878,57395630, 172186886,516560654,1549681958,4649045870, 13947137606,41841412814,125524238438,376572715310, 1129718145926] |