n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 72 |
4 | 1440 |
5 | 7200 |
6 | 302400 |
7 | 4233600 |
8 | 101606400 |
9 | 914457600 |
10 | 100590336000 |
11 | 1106493696000 |
12 | 172613016576000 |
13 | 2243969215488000 |
14 | 31415569016832000 |
15 | 942467070504960000 |
16 | 256351043177349120000 |
17 | 4357967734014935040000 |
18 | 1490424965033107783680000 |
[1,2,12,72,1440,7200,302400,4233600,101606400, 914457600,100590336000,1106493696000, 172613016576000,2243969215488000, 31415569016832000,942467070504960000, 256351043177349120000,4357967734014935040000, 1490424965033107783680000] |