n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 5 |
5 | 11 |
6 | 30 |
7 | 72 |
8 | 182 |
9 | 434 |
10 | 1048 |
11 | 2456 |
12 | 5752 |
13 | 13240 |
14 | 30336 |
15 | 68736 |
16 | 154912 |
17 | 346400 |
18 | 770688 |
19 | 1704576 |
20 | 3753344 |
21 | 8226176 |
22 | 17959936 |
23 | 39062528 |
24 | 84679168 |
25 | 182983168 |
26 | 394278912 |
27 | 847263744 |
28 | 1816164352 |
29 | 3883956224 |
30 | 8288010240 |
31 | 17649696768 |
[1,2,5,11,30,72,182,434,1048,2456,5752,13240, 30336,68736,154912,346400,770688,1704576,3753344, 8226176,17959936,39062528,84679168,182983168, 394278912,847263744,1816164352,3883956224, 8288010240,17649696768] |