n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 40 |
3 | 176 |
4 | 752 |
5 | 3168 |
6 | 13200 |
7 | 54592 |
8 | 224624 |
9 | 920672 |
10 | 3762240 |
11 | 15337408 |
12 | 62404656 |
13 | 253505184 |
14 | 1028426432 |
15 | 4167385088 |
16 | 16870487440 |
17 | 68237238816 |
18 | 275798010400 |
19 | 1113973454464 |
20 | 4496809953248 |
21 | 18142920856576 |
22 | 73165420555648 |
[1,8,40,176,752,3168,13200,54592,224624,920672, 3762240,15337408,62404656,253505184,1028426432, 4167385088,16870487440,68237238816,275798010400, 1113973454464,4496809953248,18142920856576, 73165420555648] |