n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 26 |
3 | 256 |
4 | 3489 |
5 | 61696 |
6 | 1352518 |
7 | 35566368 |
8 | 1094499820 |
9 | 38670814348 |
10 | 1545160614694 |
11 | 68970980789472 |
12 | 3404652821768232 |
13 | 184295822142051600 |
14 | 10861040169788302030 |
15 | 692560292664515634112 |
16 | 47527552597795293035916 |
17 | 3493783983256399634130360 |
18 | 273974326317024551368217200 |
[1,4,26,256,3489,61696,1352518,35566368, 1094499820,38670814348,1545160614694, 68970980789472,3404652821768232, 184295822142051600,10861040169788302030, 692560292664515634112,47527552597795293035916, 3493783983256399634130360, 273974326317024551368217200] |