n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 70 |
4 | 2100 |
5 | 115500 |
6 | 10510500 |
7 | 1471470000 |
8 | 300179880000 |
9 | 85551265800000 |
10 | 32937237333000000 |
11 | 16666242090498000000 |
12 | 10833057358823700000000 |
13 | 8872273976876610300000000 |
14 | 9005358086529759454500000000 |
15 | 11166644027296901723580000000000 |
16 | 16705299464836164978475680000000000 |
17 | 29818959544732554486579088800000000000 |
[1,1,5,70,2100,115500,10510500,1471470000, 300179880000,85551265800000,32937237333000000, 16666242090498000000,10833057358823700000000, 8872273976876610300000000, 9005358086529759454500000000, 11166644027296901723580000000000, 16705299464836164978475680000000000, 29818959544732554486579088800000000000] |