n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 1 |
7 | 3 |
8 | 7 |
9 | 18 |
10 | 42 |
11 | 109 |
12 | 269 |
13 | 691 |
14 | 1759 |
15 | 4542 |
16 | 11733 |
17 | 30559 |
18 | 79743 |
19 | 209136 |
20 | 549959 |
21 | 1451178 |
22 | 3838925 |
23 | 10182703 |
24 | 27069940 |
25 | 72121696 |
26 | 192527888 |
27 | 514908269 |
28 | 1379454526 |
29 | 3701556642 |
30 | 9947456861 |
31 | 26770280299 |
32 | 72138803942 |
[0,0,0,0,0,1,1,3,7,18,42,109,269,691,1759,4542, 11733,30559,79743,209136,549959,1451178,3838925, 10182703,27069940,72121696,192527888,514908269, 1379454526,3701556642,9947456861,26770280299, 72138803942] |