n | a(n) |
---|---|
0 | 1 |
1 | 56 |
2 | 1568 |
3 | 29288 |
4 | 410816 |
5 | 4618712 |
6 | 43381856 |
7 | 350353928 |
8 | 2485013888 |
9 | 15734806136 |
10 | 90102925472 |
11 | 471579734696 |
12 | 2275791199808 |
13 | 10202437251608 |
14 | 42760427177696 |
15 | 168481040414792 |
16 | 627099015232256 |
17 | 2214397674072248 |
[1,56,1568,29288,410816,4618712,43381856, 350353928,2485013888,15734806136,90102925472, 471579734696,2275791199808,10202437251608, 42760427177696,168481040414792,627099015232256, 2214397674072248] |