n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 54 |
4 | 1068 |
5 | 8550 |
6 | 45873 |
7 | 177968 |
8 | 562032 |
9 | 1519560 |
10 | 3662625 |
11 | 8057390 |
12 | 16477020 |
13 | 31712850 |
14 | 58018793 |
15 | 101639700 |
16 | 171525568 |
17 | 280160068 |
18 | 444636297 |
19 | 687881890 |
20 | 1040201500 |
21 | 1541008350 |
22 | 2240952065 |
23 | 3204279960 |
24 | 4511682288 |
[0,1,54,1068,8550,45873,177968,562032,1519560, 3662625,8057390,16477020,31712850,58018793, 101639700,171525568,280160068,444636297,687881890, 1040201500,1541008350,2240952065,3204279960, 4511682288] |