n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 37 |
6 | 108 |
7 | 325 |
8 | 993 |
9 | 3070 |
10 | 9564 |
11 | 29979 |
12 | 94392 |
13 | 298311 |
14 | 945592 |
15 | 3005021 |
16 | 9570559 |
17 | 30539044 |
18 | 97611676 |
19 | 312462096 |
20 | 1001554565 |
21 | 3214232129 |
22 | 10326580526 |
23 | 33210135104 |
24 | 106901289420 |
25 | 344398593149 |
26 | 1110395171502 |
27 | 3582666470285 |
28 | 11567123373968 |
[1,2,5,13,37,108,325,993,3070,9564,29979,94392, 298311,945592,3005021,9570559,30539044,97611676, 312462096,1001554565,3214232129,10326580526, 33210135104,106901289420,344398593149, 1110395171502,3582666470285,11567123373968] |