n | a(n) |
---|---|
0 | 2 |
1 | 12 |
2 | 80 |
3 | 576 |
4 | 4352 |
5 | 33792 |
6 | 266240 |
7 | 2113536 |
8 | 16842752 |
9 | 134479872 |
10 | 1074790400 |
11 | 8594128896 |
12 | 68736253952 |
13 | 549822922752 |
14 | 4398314946560 |
15 | 35185445830656 |
16 | 281479271677952 |
17 | 2251816993554432 |
18 | 18014467228958720 |
19 | 144115462953762816 |
[2,12,80,576,4352,33792,266240,2113536,16842752, 134479872,1074790400,8594128896,68736253952, 549822922752,4398314946560,35185445830656, 281479271677952,2251816993554432, 18014467228958720,144115462953762816] |