n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 6 |
3 | 45 |
4 | 436 |
5 | 5305 |
6 | 78486 |
7 | 1372945 |
8 | 27760776 |
9 | 637267473 |
10 | 16372674730 |
11 | 465411092641 |
12 | 14501033559948 |
13 | 491388542871577 |
14 | 17991446425760094 |
15 | 707765586767260785 |
16 | 29770993461985724176 |
17 | 1333347150740094075169 |
18 | 63346656788618230928466 |
[0,1,6,45,436,5305,78486,1372945,27760776, 637267473,16372674730,465411092641,14501033559948, 491388542871577,17991446425760094, 707765586767260785,29770993461985724176, 1333347150740094075169,63346656788618230928466] |