n | a(n) |
---|---|
4 | 1 |
5 | 1 |
6 | 2 |
7 | 4 |
8 | 7 |
9 | 11 |
10 | 19 |
11 | 30 |
12 | 55 |
13 | 90 |
14 | 166 |
15 | 285 |
16 | 519 |
17 | 902 |
18 | 1656 |
19 | 2929 |
20 | 5424 |
21 | 9673 |
22 | 18012 |
23 | 32467 |
24 | 60981 |
25 | 110599 |
26 | 208445 |
27 | 381301 |
28 | 722552 |
29 | 1327869 |
30 | 2522994 |
31 | 4665786 |
32 | 8902311 |
33 | 16524759 |
34 | 31594853 |
35 | 58935171 |
36 | 113038371 |
37 | 211499060 |
38 | 406350261 |
39 | 763246536 |
40 | 1470080699 |
[1,1,2,4,7,11,19,30,55,90,166,285,519,902,1656, 2929,5424,9673,18012,32467,60981,110599,208445, 381301,722552,1327869,2522994,4665786,8902311, 16524759,31594853,58935171,113038371,211499060, 406350261,763246536,1470080699] |