n | a(n) |
---|---|
1 | 0 |
2 | 10 |
3 | 45 |
4 | 216 |
5 | 1528 |
6 | 11728 |
7 | 66372 |
8 | 403920 |
9 | 2587588 |
10 | 16422928 |
11 | 100924052 |
12 | 627229368 |
13 | 3931197172 |
14 | 24518011160 |
15 | 152485541704 |
16 | 950191656704 |
17 | 5926384223020 |
18 | 36928044675096 |
19 | 230056295804064 |
20 | 1433703853124720 |
[0,10,45,216,1528,11728,66372,403920,2587588, 16422928,100924052,627229368,3931197172, 24518011160,152485541704,950191656704, 5926384223020,36928044675096,230056295804064, 1433703853124720] |