n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 10 |
4 | 30 |
5 | 74 |
6 | 199 |
7 | 515 |
8 | 1355 |
9 | 3540 |
10 | 9276 |
11 | 24276 |
12 | 63565 |
13 | 166405 |
14 | 435665 |
15 | 1140574 |
16 | 2986074 |
17 | 7817630 |
18 | 20466835 |
19 | 53582855 |
20 | 140281751 |
21 | 367262376 |
22 | 961505400 |
23 | 2517253800 |
24 | 6590256025 |
25 | 17253514249 |
26 | 45170286749 |
27 | 118257345970 |
[1,5,10,30,74,199,515,1355,3540,9276,24276,63565, 166405,435665,1140574,2986074,7817630,20466835, 53582855,140281751,367262376,961505400,2517253800, 6590256025,17253514249,45170286749,118257345970] |