n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 14 |
5 | 32 |
6 | 75 |
7 | 177 |
8 | 422 |
9 | 1013 |
10 | 2447 |
11 | 5942 |
12 | 14495 |
13 | 35501 |
14 | 87257 |
15 | 215144 |
16 | 531970 |
17 | 1318726 |
18 | 3276644 |
19 | 8158736 |
20 | 20354413 |
21 | 50870857 |
22 | 127348839 |
23 | 319288920 |
24 | 801657469 |
25 | 2015431885 |
26 | 5073224661 |
27 | 12785062080 |
28 | 32254748838 |
29 | 81457050078 |
[1,1,3,6,14,32,75,177,422,1013,2447,5942,14495, 35501,87257,215144,531970,1318726,3276644,8158736, 20354413,50870857,127348839,319288920,801657469, 2015431885,5073224661,12785062080,32254748838, 81457050078] |