n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 9 |
6 | 19 |
7 | 45 |
8 | 106 |
9 | 259 |
10 | 634 |
11 | 1571 |
12 | 3886 |
13 | 9636 |
14 | 23819 |
15 | 58805 |
16 | 144762 |
17 | 355643 |
18 | 871563 |
19 | 2131756 |
20 | 5203504 |
21 | 12679584 |
22 | 30844884 |
23 | 74921740 |
24 | 181721534 |
25 | 440177403 |
26 | 1064871279 |
27 | 2573043334 |
28 | 6210105218 |
29 | 14971861206 |
30 | 36057450646 |
[1,1,1,2,4,9,19,45,106,259,634,1571,3886,9636, 23819,58805,144762,355643,871563,2131756,5203504, 12679584,30844884,74921740,181721534,440177403, 1064871279,2573043334,6210105218,14971861206, 36057450646] |