n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 16 |
4 | 43 |
5 | 114 |
6 | 301 |
7 | 792 |
8 | 2080 |
9 | 5456 |
10 | 14301 |
11 | 37468 |
12 | 98137 |
13 | 256998 |
14 | 672946 |
15 | 1761984 |
16 | 4613239 |
17 | 12078110 |
18 | 31621701 |
19 | 82787980 |
20 | 216743836 |
21 | 567446112 |
22 | 1485598681 |
23 | 3889356696 |
24 | 10182482353 |
25 | 26658108074 |
26 | 69791870526 |
27 | 182717549872 |
[1,2,6,16,43,114,301,792,2080,5456,14301,37468, 98137,256998,672946,1761984,4613239,12078110, 31621701,82787980,216743836,567446112,1485598681, 3889356696,10182482353,26658108074,69791870526, 182717549872] |