n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 15 |
6 | 32 |
7 | 69 |
8 | 148 |
9 | 318 |
10 | 683 |
11 | 1467 |
12 | 3151 |
13 | 6768 |
14 | 14537 |
15 | 31224 |
16 | 67066 |
17 | 144051 |
18 | 309407 |
19 | 664575 |
20 | 1427440 |
21 | 3065997 |
22 | 6585452 |
23 | 14144886 |
24 | 30381787 |
25 | 65257011 |
26 | 140165471 |
27 | 301061280 |
28 | 646649233 |
29 | 1388937264 |
30 | 2983297010 |
31 | 6407820771 |
32 | 13763352055 |
33 | 29562290607 |
[1,0,2,3,7,15,32,69,148,318,683,1467,3151,6768, 14537,31224,67066,144051,309407,664575,1427440, 3065997,6585452,14144886,30381787,65257011, 140165471,301061280,646649233,1388937264, 2983297010,6407820771,13763352055,29562290607] |