n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 6 |
3 | 12 |
4 | 24 |
5 | 40 |
6 | 72 |
7 | 126 |
8 | 240 |
9 | 272 |
10 | 336 |
11 | 438 |
12 | 648 |
13 | 906 |
14 | 1422 |
15 | 2340 |
16 | 4320 |
17 | 5346 |
18 | 7398 |
19 | 10668 |
20 | 17400 |
21 | 27720 |
22 | 49896 |
23 | 93150 |
24 | 196560 |
25 | 196656 |
[0,2,6,12,24,40,72,126,240,272,336,438,648,906, 1422,2340,4320,5346,7398,10668,17400,27720,49896, 93150,196560,196656] |