n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 13 |
7 | 31 |
8 | 80 |
9 | 222 |
10 | 659 |
11 | 2082 |
12 | 6966 |
13 | 24574 |
14 | 91067 |
15 | 353443 |
16 | 1432909 |
17 | 6054025 |
18 | 26599192 |
19 | 121295345 |
20 | 573065538 |
21 | 2800640187 |
22 | 14137645933 |
23 | 73619324824 |
24 | 394979697320 |
25 | 2180911872495 |
26 | 12380240599262 |
27 | 72181691321844 |
28 | 431857838950302 |
29 | 2649144684462775 |
[1,1,1,2,3,6,13,31,80,222,659,2082,6966,24574, 91067,353443,1432909,6054025,26599192,121295345, 573065538,2800640187,14137645933,73619324824, 394979697320,2180911872495,12380240599262, 72181691321844,431857838950302,2649144684462775] |