n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 3 |
6 | 6 |
7 | 11 |
8 | 18 |
9 | 33 |
10 | 60 |
11 | 110 |
12 | 204 |
13 | 381 |
14 | 717 |
15 | 1355 |
16 | 2582 |
17 | 4939 |
18 | 9485 |
19 | 18264 |
20 | 35273 |
21 | 68275 |
22 | 132440 |
23 | 257385 |
24 | 500985 |
25 | 976621 |
26 | 1906221 |
27 | 3725007 |
28 | 7286865 |
29 | 14268275 |
30 | 27963114 |
31 | 54846674 |
32 | 107656257 |
33 | 211459271 |
34 | 415616221 |
35 | 817365314 |
[0,0,0,1,2,3,6,11,18,33,60,110,204,381,717,1355, 2582,4939,9485,18264,35273,68275,132440,257385, 500985,976621,1906221,3725007,7286865,14268275, 27963114,54846674,107656257,211459271,415616221, 817365314] |