n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 32 |
4 | 132 |
5 | 552 |
6 | 2328 |
7 | 9872 |
8 | 42020 |
9 | 179336 |
10 | 766888 |
11 | 3284272 |
12 | 14081224 |
13 | 60426576 |
14 | 259490736 |
15 | 1114965792 |
16 | 4792924356 |
17 | 20611174920 |
18 | 88662405768 |
19 | 381494338032 |
20 | 1641837542232 |
21 | 7067257125744 |
22 | 30425523536592 |
[1,2,8,32,132,552,2328,9872,42020,179336,766888, 3284272,14081224,60426576,259490736,1114965792, 4792924356,20611174920,88662405768,381494338032, 1641837542232,7067257125744,30425523536592] |