n | a(n) |
---|---|
2 | 10 |
3 | 90 |
4 | 720 |
5 | 5400 |
6 | 38880 |
7 | 272160 |
8 | 1866240 |
9 | 12597120 |
10 | 83980800 |
11 | 554273280 |
12 | 3627970560 |
13 | 23581808640 |
14 | 152374763520 |
15 | 979552051200 |
16 | 6269133127680 |
17 | 39965723688960 |
18 | 253899891671040 |
19 | 1608032647249920 |
20 | 10155995666841600 |
[10,90,720,5400,38880,272160,1866240,12597120, 83980800,554273280,3627970560,23581808640, 152374763520,979552051200,6269133127680, 39965723688960,253899891671040,1608032647249920, 10155995666841600] |