n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 6 |
4 | 13 |
5 | 30 |
6 | 71 |
7 | 170 |
8 | 409 |
9 | 986 |
10 | 2379 |
11 | 5742 |
12 | 13861 |
13 | 33462 |
14 | 80783 |
15 | 195026 |
16 | 470833 |
17 | 1136690 |
18 | 2744211 |
19 | 6625110 |
20 | 15994429 |
21 | 38613966 |
22 | 93222359 |
23 | 225058682 |
24 | 543339721 |
25 | 1311738122 |
26 | 3166815963 |
27 | 7645370046 |
28 | 18457556053 |
29 | 44560482150 |
30 | 107578520351 |
[1,2,3,6,13,30,71,170,409,986,2379,5742,13861, 33462,80783,195026,470833,1136690,2744211,6625110, 15994429,38613966,93222359,225058682,543339721, 1311738122,3166815963,7645370046,18457556053, 44560482150,107578520351] |