n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 71 |
3 | 846 |
4 | 10081 |
5 | 120126 |
6 | 1431431 |
7 | 17057046 |
8 | 203253121 |
9 | 2421980406 |
10 | 28860511751 |
11 | 343904160606 |
12 | 4097989415521 |
13 | 48831968825646 |
14 | 581885636492231 |
15 | 6933795669081126 |
16 | 82623662392481281 |
17 | 984550153040694246 |
18 | 11731978174095849671 |
19 | 139799187936109501806 |
[1,6,71,846,10081,120126,1431431,17057046, 203253121,2421980406,28860511751,343904160606, 4097989415521,48831968825646,581885636492231, 6933795669081126,82623662392481281, 984550153040694246,11731978174095849671, 139799187936109501806] |