n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 16 |
5 | 130 |
6 | 1485 |
7 | 22645 |
8 | 444136 |
9 | 10889676 |
10 | 326345460 |
11 | 11736144420 |
12 | 498798542880 |
13 | 24732729791484 |
14 | 1415034219327729 |
15 | 92523874454996985 |
16 | 6856434802243346320 |
17 | 571604206230905727880 |
18 | 53259509403796625217288 |
19 | 5513868420471764306104008 |
[1,1,3,16,130,1485,22645,444136,10889676, 326345460,11736144420,498798542880,24732729791484, 1415034219327729,92523874454996985, 6856434802243346320,571604206230905727880, 53259509403796625217288,5513868420471764306104008] |