n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 9 |
4 | 30 |
5 | 80 |
6 | 180 |
7 | 357 |
8 | 644 |
9 | 1080 |
10 | 1710 |
11 | 2585 |
12 | 3762 |
13 | 5304 |
14 | 7280 |
15 | 9765 |
16 | 12840 |
17 | 16592 |
18 | 21114 |
19 | 26505 |
20 | 32870 |
21 | 40320 |
22 | 48972 |
23 | 58949 |
24 | 70380 |
25 | 83400 |
26 | 98150 |
27 | 114777 |
28 | 133434 |
29 | 154280 |
30 | 177480 |
31 | 203205 |
32 | 231632 |
33 | 262944 |
34 | 297330 |
35 | 334985 |
36 | 376110 |
37 | 420912 |
38 | 469604 |
39 | 522405 |
40 | 579540 |
41 | 641240 |
42 | 707742 |
43 | 779289 |
44 | 856130 |
[0,2,9,30,80,180,357,644,1080,1710,2585,3762,5304, 7280,9765,12840,16592,21114,26505,32870,40320, 48972,58949,70380,83400,98150,114777,133434, 154280,177480,203205,231632,262944,297330,334985, 376110,420912,469604,522405,579540,641240,707742, 779289,856130] |