n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 36 |
4 | 288 |
5 | 7200 |
6 | 14400 |
7 | 705600 |
8 | 11289600 |
9 | 914457600 |
10 | 9144576000 |
11 | 1106493696000 |
12 | 13277924352000 |
13 | 2243969215488000 |
14 | 31415569016832000 |
15 | 471233535252480000 |
16 | 15079473128079360000 |
17 | 4357967734014935040000 |
18 | 26147806404089610240000 |
19 | 9439358111876349296640000 |
[1,4,36,288,7200,14400,705600,11289600,914457600, 9144576000,1106493696000,13277924352000, 2243969215488000,31415569016832000, 471233535252480000,15079473128079360000, 4357967734014935040000,26147806404089610240000, 9439358111876349296640000] |