n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 48 |
4 | 516 |
5 | 6955 |
6 | 112686 |
7 | 2132634 |
8 | 46167560 |
9 | 1125116901 |
10 | 30481672610 |
11 | 908760877244 |
12 | 29565986232396 |
13 | 1042354163621927 |
14 | 39584173937284438 |
15 | 1610922147768721590 |
16 | 69940319175066857488 |
17 | 3226793787576474492657 |
18 | 157649292247463953189578 |
[1,1,6,48,516,6955,112686,2132634,46167560, 1125116901,30481672610,908760877244, 29565986232396,1042354163621927,39584173937284438, 1610922147768721590,69940319175066857488, 3226793787576474492657,157649292247463953189578] |