n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 6 |
4 | 96 |
5 | 600 |
6 | 2400 |
7 | 7350 |
8 | 18816 |
9 | 42336 |
10 | 86400 |
11 | 163350 |
12 | 290400 |
13 | 490776 |
14 | 794976 |
15 | 1242150 |
16 | 1881600 |
17 | 2774400 |
18 | 3995136 |
19 | 5633766 |
20 | 7797600 |
21 | 10613400 |
22 | 14229600 |
23 | 18818646 |
24 | 24579456 |
25 | 31740000 |
26 | 40560000 |
27 | 51333750 |
28 | 64393056 |
29 | 80110296 |
30 | 98901600 |
[0,1,6,96,600,2400,7350,18816,42336,86400,163350, 290400,490776,794976,1242150,1881600,2774400, 3995136,5633766,7797600,10613400,14229600, 18818646,24579456,31740000,40560000,51333750, 64393056,80110296,98901600] |