n | a(n) |
---|---|
0 | 4 |
1 | 8 |
2 | 24 |
3 | 80 |
4 | 272 |
5 | 928 |
6 | 3168 |
7 | 10816 |
8 | 36928 |
9 | 126080 |
10 | 430464 |
11 | 1469696 |
12 | 5017856 |
13 | 17132032 |
14 | 58492416 |
15 | 199705600 |
16 | 681837568 |
17 | 2327939072 |
18 | 7948081152 |
19 | 27136446464 |
20 | 92649623552 |
21 | 316325601280 |
22 | 1080003158016 |
23 | 3687361429504 |
24 | 12589439401984 |
25 | 42983034748928 |
[4,8,24,80,272,928,3168,10816,36928,126080,430464, 1469696,5017856,17132032,58492416,199705600, 681837568,2327939072,7948081152,27136446464, 92649623552,316325601280,1080003158016, 3687361429504,12589439401984,42983034748928] |