n | a(n) |
---|---|
4 | 1 |
5 | 10 |
6 | 65 |
7 | 350 |
8 | 1666 |
9 | 6510 |
10 | 7855 |
11 | -270050 |
12 | -4942894 |
13 | -63052990 |
14 | -682650605 |
15 | -6309889950 |
16 | -42960995804 |
17 | 348211510 |
18 | 7739540496935 |
19 | 202902567668150 |
20 | 3863986259609686 |
21 | 61527382177040010 |
22 | 807717870749781475 |
23 | 7066953051021894250 |
24 | -33781117662453993424 |
[1,10,65,350,1666,6510,7855,-270050,-4942894, -63052990,-682650605,-6309889950,-42960995804, 348211510,7739540496935,202902567668150, 3863986259609686,61527382177040010, 807717870749781475,7066953051021894250, -33781117662453993424] |