n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 12 |
4 | 36 |
5 | 72 |
6 | 192 |
7 | 1152 |
8 | 2592 |
9 | 2916 |
10 | 1492992 |
11 | 1990656 |
12 | 5308416 |
13 | 28311552 |
14 | 6879707136 |
15 | 1761205026816 |
16 | 5566277615616 |
17 | 79164837199872 |
18 | 3799912185593856 |
19 | 115422332637413376 |
20 | 1332669751402954752 |
21 | 4803028329503971872 |
[2,4,12,36,72,192,1152,2592,2916,1492992,1990656, 5308416,28311552,6879707136,1761205026816, 5566277615616,79164837199872,3799912185593856, 115422332637413376,1332669751402954752, 4803028329503971872] |