n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 3 |
7 | 6 |
8 | 14 |
9 | 29 |
10 | 68 |
11 | 147 |
12 | 337 |
13 | 757 |
14 | 1734 |
15 | 3953 |
16 | 9113 |
17 | 20988 |
18 | 48645 |
19 | 112909 |
20 | 263084 |
21 | 614201 |
22 | 1438001 |
23 | 3373253 |
24 | 7930660 |
25 | 18679005 |
26 | 44075988 |
27 | 104173194 |
28 | 246604137 |
29 | 584620470 |
30 | 1387879434 |
31 | 3299067379 |
32 | 7851736348 |
33 | 18708682855 |
34 | 44627133541 |
[0,0,0,0,1,1,3,6,14,29,68,147,337,757,1734,3953, 9113,20988,48645,112909,263084,614201,1438001, 3373253,7930660,18679005,44075988,104173194, 246604137,584620470,1387879434,3299067379, 7851736348,18708682855,44627133541] |