n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 44 |
4 | 292 |
5 | 2296 |
6 | 21472 |
7 | 221168 |
8 | 2554544 |
9 | 32617952 |
10 | 452957056 |
11 | 6788855872 |
12 | 110098330048 |
13 | 1900192498304 |
14 | 34971968379392 |
15 | 683452436531456 |
16 | 14097619892177152 |
17 | 306168410773570048 |
18 | 6998327049216231424 |
19 | 167369475021548506112 |
20 | 4187842602663179396096 |
[1,2,8,44,292,2296,21472,221168,2554544,32617952, 452957056,6788855872,110098330048,1900192498304, 34971968379392,683452436531456,14097619892177152, 306168410773570048,6998327049216231424, 167369475021548506112,4187842602663179396096] |