n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 19 |
4 | 55 |
5 | 161 |
6 | 469 |
7 | 1362 |
8 | 3954 |
9 | 11483 |
10 | 33379 |
11 | 97146 |
12 | 283114 |
13 | 826214 |
14 | 2414366 |
15 | 7064217 |
16 | 20693797 |
17 | 60686847 |
18 | 178152055 |
19 | 523473326 |
20 | 1539479414 |
21 | 4531059224 |
22 | 13345835288 |
23 | 39335816471 |
24 | 116012701523 |
25 | 342356498884 |
[1,2,6,19,55,161,469,1362,3954,11483,33379,97146, 283114,826214,2414366,7064217,20693797,60686847, 178152055,523473326,1539479414,4531059224, 13345835288,39335816471,116012701523,342356498884] |