n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 64 |
4 | 372 |
5 | 1856 |
6 | 9052 |
7 | 45648 |
8 | 235538 |
9 | 1215616 |
10 | 6233356 |
11 | 31868448 |
12 | 163014678 |
13 | 834763824 |
14 | 4276077566 |
15 | 21900661172 |
16 | 112149148911 |
17 | 574278200480 |
18 | 2940790043388 |
19 | 15059692639376 |
20 | 77120252989206 |
21 | 394927990211792 |
[1,8,64,372,1856,9052,45648,235538,1215616, 6233356,31868448,163014678,834763824,4276077566, 21900661172,112149148911,574278200480, 2940790043388,15059692639376,77120252989206, 394927990211792] |