n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 120 |
3 | 1540 |
4 | 20500 |
5 | 279480 |
6 | 3876600 |
7 | 54496200 |
8 | 774468900 |
9 | 11107261000 |
10 | 160553895040 |
11 | 2336799457200 |
12 | 34219387524400 |
13 | 503846306168800 |
14 | 7455357525594000 |
15 | 110811908027490960 |
16 | 1653792126235140900 |
17 | 24774309852363829800 |
18 | 372404448149589213600 |
[1,10,120,1540,20500,279480,3876600,54496200, 774468900,11107261000,160553895040,2336799457200, 34219387524400,503846306168800,7455357525594000, 110811908027490960,1653792126235140900, 24774309852363829800,372404448149589213600] |