n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 28 |
4 | 105 |
5 | 357 |
6 | 1232 |
7 | 4067 |
8 | 13301 |
9 | 42357 |
10 | 132845 |
11 | 409262 |
12 | 1243767 |
13 | 3727360 |
14 | 11036649 |
15 | 32300795 |
16 | 93538278 |
17 | 268164868 |
18 | 761656685 |
19 | 2144259516 |
20 | 5986658951 |
21 | 16583102077 |
22 | 45593269265 |
23 | 124464561544 |
24 | 337479729179 |
25 | 909156910290 |
26 | 2434121462871 |
27 | 6478440788169 |
[1,7,28,105,357,1232,4067,13301,42357,132845, 409262,1243767,3727360,11036649,32300795,93538278, 268164868,761656685,2144259516,5986658951, 16583102077,45593269265,124464561544,337479729179, 909156910290,2434121462871,6478440788169] |