n | a(n) |
---|---|
0 | 0 |
1 | 7 |
2 | 77 |
3 | 735 |
4 | 6517 |
5 | 55223 |
6 | 453789 |
7 | 3647119 |
8 | 28824005 |
9 | 224827239 |
10 | 1735205101 |
11 | 13276336703 |
12 | 100843663893 |
13 | 761270796055 |
14 | 5716451614013 |
15 | 42728053589487 |
16 | 318086621166181 |
17 | 2359538070441671 |
18 | 17447288549040525 |
19 | 128644674234925471 |
20 | 946108300385970869 |
[0,7,77,735,6517,55223,453789,3647119,28824005, 224827239,1735205101,13276336703,100843663893, 761270796055,5716451614013,42728053589487, 318086621166181,2359538070441671, 17447288549040525,128644674234925471, 946108300385970869] |