n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 13 |
6 | 33 |
7 | 85 |
8 | 234 |
9 | 675 |
10 | 2032 |
11 | 6367 |
12 | 20677 |
13 | 69442 |
14 | 240529 |
15 | 857634 |
16 | 3141970 |
17 | 11808611 |
18 | 45464065 |
19 | 179088744 |
20 | 720947705 |
21 | 2962994169 |
22 | 12420658682 |
23 | 53061133078 |
24 | 230828047288 |
25 | 1021809688593 |
26 | 4599749893986 |
27 | 21043392417004 |
28 | 97784119963565 |
29 | 461277854065112 |
[1,1,1,3,6,13,33,85,234,675,2032,6367,20677,69442, 240529,857634,3141970,11808611,45464065,179088744, 720947705,2962994169,12420658682,53061133078, 230828047288,1021809688593,4599749893986, 21043392417004,97784119963565,461277854065112] |