n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 22 |
5 | 59 |
6 | 156 |
7 | 405 |
8 | 1061 |
9 | 2786 |
10 | 7284 |
11 | 19071 |
12 | 49948 |
13 | 130738 |
14 | 342288 |
15 | 896175 |
16 | 2346134 |
17 | 6142287 |
18 | 16080852 |
19 | 42100020 |
20 | 110219366 |
21 | 288558380 |
22 | 755455128 |
23 | 1977807393 |
24 | 5177967900 |
25 | 13556094631 |
26 | 35490316938 |
27 | 92914858431 |
28 | 243254253904 |
29 | 636847905903 |
30 | 1667289469704 |
31 | 4365020491362 |
[1,1,3,9,22,59,156,405,1061,2786,7284,19071,49948, 130738,342288,896175,2346134,6142287,16080852, 42100020,110219366,288558380,755455128,1977807393, 5177967900,13556094631,35490316938,92914858431, 243254253904,636847905903,1667289469704, 4365020491362] |