n | a(n) |
---|---|
0 | 20 |
1 | 9472 |
2 | 164052 |
3 | 1107200 |
4 | 4681300 |
5 | 14929920 |
6 | 39411092 |
7 | 90821632 |
8 | 188932500 |
9 | 362835200 |
10 | 653499220 |
11 | 1116640512 |
12 | 1825901012 |
13 | 2876339200 |
14 | 4388231700 |
15 | 6511185920 |
16 | 9428563732 |
17 | 13362216192 |
18 | 18577529300 |
19 | 25388780800 |
20 | 34164808020 |
[20,9472,164052,1107200,4681300,14929920,39411092, 90821632,188932500,362835200,653499220,1116640512, 1825901012,2876339200,4388231700,6511185920, 9428563732,13362216192,18577529300,25388780800, 34164808020] |