n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 27 |
3 | 80 |
4 | 216 |
5 | 448 |
6 | 1296 |
7 | 2816 |
8 | 6400 |
9 | 13312 |
10 | 30720 |
11 | 62208 |
12 | 139264 |
13 | 311296 |
14 | 688128 |
15 | 1474560 |
16 | 2985984 |
17 | 6029312 |
18 | 12845056 |
19 | 30408704 |
20 | 65011712 |
21 | 131072000 |
22 | 264241152 |
23 | 553648128 |
24 | 1132462080 |
25 | 2293235712 |
26 | 4697620480 |
27 | 9932111872 |
28 | 20132659200 |
29 | 41875931136 |
30 | 88046829568 |
[1,9,27,80,216,448,1296,2816,6400,13312,30720, 62208,139264,311296,688128,1474560,2985984, 6029312,12845056,30408704,65011712,131072000, 264241152,553648128,1132462080,2293235712, 4697620480,9932111872,20132659200,41875931136, 88046829568] |