n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 49 |
5 | 409 |
6 | 4356 |
7 | 56734 |
8 | 877094 |
9 | 15742521 |
10 | 322454800 |
11 | 7434673036 |
12 | 190792267128 |
13 | 5398552673617 |
14 | 167087263076384 |
15 | 5617979017621650 |
16 | 203987454978218416 |
17 | 7957053981454827601 |
18 | 331920300203780633856 |
19 | 14746208516909980554736 |
20 | 695208730205550274544000 |
[1,2,8,49,409,4356,56734,877094,15742521, 322454800,7434673036,190792267128,5398552673617, 167087263076384,5617979017621650, 203987454978218416,7957053981454827601, 331920300203780633856,14746208516909980554736, 695208730205550274544000] |