n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 18 |
4 | 58 |
5 | 184 |
6 | 586 |
7 | 1822 |
8 | 5618 |
9 | 16980 |
10 | 50892 |
11 | 150064 |
12 | 439210 |
13 | 1268924 |
14 | 3640342 |
15 | 10337596 |
16 | 29160638 |
17 | 81570368 |
18 | 226795202 |
19 | 626070664 |
20 | 1718783084 |
21 | 4689582366 |
22 | 12730998988 |
23 | 34373603158 |
24 | 92385339242 |
25 | 247099560046 |
26 | 658137847408 |
27 | 1745322097886 |
28 | 4610549234836 |
29 | 12131656526628 |
[1,2,6,18,58,184,586,1822,5618,16980,50892,150064, 439210,1268924,3640342,10337596,29160638,81570368, 226795202,626070664,1718783084,4689582366, 12730998988,34373603158,92385339242,247099560046, 658137847408,1745322097886,4610549234836, 12131656526628] |