n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 60 |
3 | 720 |
4 | 4080 |
5 | 15600 |
6 | 46620 |
7 | 117600 |
8 | 262080 |
9 | 531360 |
10 | 999900 |
11 | 1771440 |
12 | 2985840 |
13 | 4826640 |
14 | 7529340 |
15 | 11390400 |
16 | 16776960 |
17 | 24137280 |
18 | 34011900 |
19 | 47045520 |
20 | 63999600 |
21 | 85765680 |
22 | 113379420 |
23 | 148035360 |
24 | 191102400 |
25 | 244140000 |
26 | 308915100 |
[0,0,60,720,4080,15600,46620,117600,262080,531360, 999900,1771440,2985840,4826640,7529340,11390400, 16776960,24137280,34011900,47045520,63999600, 85765680,113379420,148035360,191102400,244140000, 308915100] |