n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 10 |
3 | 46 |
4 | 191 |
5 | 740 |
6 | 2912 |
7 | 10941 |
8 | 40345 |
9 | 144703 |
10 | 509693 |
11 | 1761738 |
12 | 5993434 |
13 | 20076668 |
14 | 66329914 |
15 | 216307961 |
16 | 696990583 |
17 | 2220665661 |
18 | 7000973556 |
19 | 21853019072 |
20 | 67575353580 |
21 | 207111103623 |
22 | 629440843762 |
23 | 1897670845715 |
24 | 5677604053474 |
25 | 16863081962184 |
26 | 49736388996376 |
27 | 145714874857754 |
[1,1,10,46,191,740,2912,10941,40345,144703,509693, 1761738,5993434,20076668,66329914,216307961, 696990583,2220665661,7000973556,21853019072, 67575353580,207111103623,629440843762, 1897670845715,5677604053474,16863081962184, 49736388996376,145714874857754] |