n | a(n) |
---|---|
0 | 1 |
1 | 60 |
2 | 1980 |
3 | 47520 |
4 | 926640 |
5 | 15567552 |
6 | 233513280 |
7 | 3202467840 |
8 | 40831464960 |
9 | 489977579520 |
10 | 5585744406528 |
11 | 60935393525760 |
12 | 639821632020480 |
13 | 6496650417438720 |
14 | 64038411257610240 |
15 | 614768748073058304 |
16 | 5763457013184921600 |
17 | 52888193768049868800 |
18 | 475993743912448819200 |
[1,60,1980,47520,926640,15567552,233513280, 3202467840,40831464960,489977579520,5585744406528, 60935393525760,639821632020480,6496650417438720, 64038411257610240,614768748073058304, 5763457013184921600,52888193768049868800, 475993743912448819200] |