n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 44 |
4 | 235 |
5 | 1296 |
6 | 7329 |
7 | 42104 |
8 | 244719 |
9 | 1434840 |
10 | 8470517 |
11 | 50280372 |
12 | 299806572 |
13 | 1794382548 |
14 | 10773855210 |
15 | 64865425760 |
16 | 391457133672 |
17 | 2367314649522 |
18 | 14342441005900 |
19 | 87035702613500 |
20 | 528938145043707 |
21 | 3218713327609648 |
[1,2,9,44,235,1296,7329,42104,244719,1434840, 8470517,50280372,299806572,1794382548,10773855210, 64865425760,391457133672,2367314649522, 14342441005900,87035702613500,528938145043707, 3218713327609648] |