n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 288 |
3 | 5832 |
4 | 51200 |
5 | 281250 |
6 | 1143072 |
7 | 3764768 |
8 | 10616832 |
9 | 26572050 |
10 | 60500000 |
11 | 127552392 |
12 | 252315648 |
13 | 473027282 |
14 | 847072800 |
15 | 1458000000 |
16 | 2424307712 |
17 | 3910286178 |
18 | 6139206432 |
19 | 9409176200 |
20 | 14112000000 |
21 | 20755401282 |
22 | 29988984608 |
[0,2,288,5832,51200,281250,1143072,3764768, 10616832,26572050,60500000,127552392,252315648, 473027282,847072800,1458000000,2424307712, 3910286178,6139206432,9409176200,14112000000, 20755401282,29988984608] |