n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 29 |
6 | 95 |
7 | 345 |
8 | 1376 |
9 | 5966 |
10 | 27886 |
11 | 139608 |
12 | 744552 |
13 | 4210191 |
14 | 25140790 |
15 | 157981820 |
16 | 1041480482 |
17 | 7183374125 |
18 | 51711299169 |
19 | 387683162541 |
20 | 3020997261596 |
21 | 24424884853963 |
22 | 204559337781097 |
23 | 1772011400733378 |
24 | 15855597322378302 |
25 | 146360032952969570 |
[1,1,2,4,10,29,95,345,1376,5966,27886,139608, 744552,4210191,25140790,157981820,1041480482, 7183374125,51711299169,387683162541,3020997261596, 24424884853963,204559337781097,1772011400733378, 15855597322378302,146360032952969570] |