n | a(n) |
---|---|
2 | 1 |
3 | 6 |
4 | 46 |
5 | 452 |
6 | 4852 |
7 | 52972 |
8 | 587047 |
9 | 6550808 |
10 | 73483256 |
11 | 827801468 |
12 | 9360123740 |
13 | 106189359544 |
14 | 1208328304864 |
15 | 13787042250528 |
16 | 157700137398689 |
17 | 1807893066408464 |
18 | 20768681225892328 |
19 | 239037464947999900 |
[1,6,46,452,4852,52972,587047,6550808,73483256, 827801468,9360123740,106189359544,1208328304864, 13787042250528,157700137398689,1807893066408464, 20768681225892328,239037464947999900] |