n | a(n) |
---|---|
0 | 2 |
1 | 3 |
2 | 6 |
3 | 13 |
4 | 30 |
5 | 71 |
6 | 170 |
7 | 409 |
8 | 986 |
9 | 2379 |
10 | 5742 |
11 | 13861 |
12 | 33462 |
13 | 80783 |
14 | 195026 |
15 | 470833 |
16 | 1136690 |
17 | 2744211 |
18 | 6625110 |
19 | 15994429 |
20 | 38613966 |
21 | 93222359 |
22 | 225058682 |
23 | 543339721 |
24 | 1311738122 |
25 | 3166815963 |
26 | 7645370046 |
27 | 18457556053 |
28 | 44560482150 |
29 | 107578520351 |
30 | 259717522850 |
[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, 44560482150,107578520351,259717522850] |