n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 32 |
6 | 112 |
7 | 352 |
8 | 1296 |
9 | 4448 |
10 | 16640 |
11 | 59968 |
12 | 231168 |
13 | 856960 |
14 | 3334400 |
15 | 12679424 |
16 | 49991424 |
17 | 192890880 |
18 | 767229952 |
19 | 2998427648 |
20 | 12015527936 |
21 | 47438950400 |
22 | 191117033472 |
23 | 760625733632 |
24 | 3082675150848 |
25 | 12346305839104 |
26 | 50223511928832 |
27 | 202359539335168 |
[1,1,2,4,12,32,112,352,1296,4448,16640,59968, 231168,856960,3334400,12679424,49991424,192890880, 767229952,2998427648,12015527936,47438950400, 191117033472,760625733632,3082675150848, 12346305839104,50223511928832,202359539335168] |