n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 35 |
3 | 265 |
4 | 2195 |
5 | 19625 |
6 | 187755 |
7 | 1909185 |
8 | 20521515 |
9 | 232124745 |
10 | 2752591475 |
11 | 34108980105 |
12 | 440444019835 |
13 | 5912197332865 |
14 | 82320781521195 |
15 | 1186703083508025 |
16 | 17680850448587155 |
17 | 271845880552898985 |
18 | 4307188044378111915 |
19 | 70236616096770062945 |
20 | 1177406236243423738475 |
[1,5,35,265,2195,19625,187755,1909185,20521515, 232124745,2752591475,34108980105,440444019835, 5912197332865,82320781521195,1186703083508025, 17680850448587155,271845880552898985, 4307188044378111915,70236616096770062945, 1177406236243423738475] |