n | a(n) |
---|---|
1 | 2 |
2 | 8 |
3 | 40 |
4 | 176 |
5 | 808 |
6 | 3584 |
7 | 16368 |
8 | 72640 |
9 | 331648 |
10 | 1471872 |
11 | 6719936 |
12 | 29823488 |
13 | 136161152 |
14 | 604291584 |
15 | 2758934016 |
16 | 12244319232 |
17 | 55902265856 |
18 | 248097701888 |
19 | 1132706802688 |
20 | 5027022614528 |
21 | 22951211032576 |
22 | 101858889359360 |
[2,8,40,176,808,3584,16368,72640,331648,1471872, 6719936,29823488,136161152,604291584,2758934016, 12244319232,55902265856,248097701888, 1132706802688,5027022614528,22951211032576, 101858889359360] |