n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 6 |
4 | 14 |
5 | 32 |
6 | 102 |
7 | 238 |
8 | 652 |
9 | 1696 |
10 | 4480 |
11 | 11658 |
12 | 30870 |
13 | 80644 |
14 | 212292 |
15 | 556858 |
16 | 1463390 |
17 | 3840686 |
18 | 10090218 |
19 | 26490280 |
20 | 69575414 |
21 | 182693434 |
22 | 479789138 |
23 | 1259906496 |
24 | 3308668718 |
25 | 8688615148 |
26 | 22817011182 |
27 | 59918425698 |
28 | 157349755400 |
29 | 413208421354 |
30 | 1085110433096 |
[1,0,2,6,14,32,102,238,652,1696,4480,11658,30870, 80644,212292,556858,1463390,3840686,10090218, 26490280,69575414,182693434,479789138,1259906496, 3308668718,8688615148,22817011182,59918425698, 157349755400,413208421354,1085110433096] |