n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 16 |
3 | 72 |
4 | 256 |
5 | 800 |
6 | 2304 |
7 | 6272 |
8 | 16384 |
9 | 41472 |
10 | 102400 |
11 | 247808 |
12 | 589824 |
13 | 1384448 |
14 | 3211264 |
15 | 7372800 |
16 | 16777216 |
17 | 37879808 |
18 | 84934656 |
19 | 189267968 |
20 | 419430400 |
21 | 924844032 |
22 | 2030043136 |
23 | 4437573632 |
24 | 9663676416 |
25 | 20971520000 |
26 | 45365592064 |
27 | 97844723712 |
28 | 210453397504 |
[0,2,16,72,256,800,2304,6272,16384,41472,102400, 247808,589824,1384448,3211264,7372800,16777216, 37879808,84934656,189267968,419430400,924844032, 2030043136,4437573632,9663676416,20971520000, 45365592064,97844723712,210453397504] |