n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 21 |
4 | 71 |
5 | 196 |
6 | 532 |
7 | 1301 |
8 | 3101 |
9 | 6956 |
10 | 15217 |
11 | 31951 |
12 | 65670 |
13 | 130914 |
14 | 256150 |
15 | 489690 |
16 | 920905 |
17 | 1699693 |
18 | 3092751 |
19 | 5540571 |
20 | 9802091 |
21 | 17114237 |
22 | 29550346 |
23 | 50444952 |
24 | 85264328 |
25 | 142682505 |
26 | 236649524 |
27 | 389033014 |
28 | 634408230 |
29 | 1026350152 |
30 | 1648328017 |
31 | 2628254619 |
[1,1,6,21,71,196,532,1301,3101,6956,15217,31951, 65670,130914,256150,489690,920905,1699693,3092751, 5540571,9802091,17114237,29550346,50444952, 85264328,142682505,236649524,389033014,634408230, 1026350152,1648328017,2628254619] |