n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 41 |
5 | 153 |
6 | 573 |
7 | 2157 |
8 | 8163 |
9 | 31043 |
10 | 118559 |
11 | 454479 |
12 | 1747771 |
13 | 6740059 |
14 | 26055459 |
15 | 100939779 |
16 | 391785129 |
17 | 1523230569 |
18 | 5931153429 |
19 | 23126146629 |
20 | 90282147849 |
21 | 352846964649 |
22 | 1380430179489 |
23 | 5405662979649 |
24 | 21186405207549 |
25 | 83101804279101 |
26 | 326199124351701 |
[1,1,3,11,41,153,573,2157,8163,31043,118559, 454479,1747771,6740059,26055459,100939779, 391785129,1523230569,5931153429,23126146629, 90282147849,352846964649,1380430179489, 5405662979649,21186405207549,83101804279101, 326199124351701] |