n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 23 |
4 | 55 |
5 | 149 |
6 | 339 |
7 | 889 |
8 | 1966 |
9 | 5059 |
10 | 10985 |
11 | 27939 |
12 | 59898 |
13 | 151210 |
14 | 321155 |
15 | 806806 |
16 | 1701347 |
17 | 4260511 |
18 | 8933737 |
19 | 22325426 |
20 | 46600476 |
21 | 116300505 |
22 | 241846731 |
23 | 603086027 |
24 | 1250175771 |
25 | 3116094702 |
26 | 6442311137 |
27 | 16054097455 |
28 | 33114584924 |
[1,3,8,23,55,149,339,889,1966,5059,10985,27939, 59898,151210,321155,806806,1701347,4260511, 8933737,22325426,46600476,116300505,241846731, 603086027,1250175771,3116094702,6442311137, 16054097455,33114584924] |