n | a(n) |
---|---|
1 | 15 |
2 | 60 |
3 | 60 |
4 | 264 |
5 | 612 |
6 | 264 |
7 | 1176 |
8 | 6696 |
9 | 6696 |
10 | 1176 |
11 | 5280 |
12 | 74736 |
13 | 190740 |
14 | 74736 |
15 | 5280 |
16 | 23712 |
17 | 840456 |
18 | 5514360 |
19 | 5514360 |
20 | 840456 |
21 | 23712 |
22 | 106560 |
23 | 9474840 |
24 | 161370036 |
25 | 419434596 |
26 | 161370036 |
27 | 9474840 |
28 | 106560 |
29 | 478848 |
30 | 106904016 |
31 | 4730218284 |
[15,60,60,264,612,264,1176,6696,6696,1176,5280, 74736,190740,74736,5280,23712,840456,5514360, 5514360,840456,23712,106560,9474840,161370036, 419434596,161370036,9474840,106560,478848, 106904016,4730218284] |