n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 16 |
3 | 76 |
4 | 384 |
5 | 2004 |
6 | 10672 |
7 | 57628 |
8 | 314368 |
9 | 1728292 |
10 | 9560016 |
11 | 53144172 |
12 | 296642688 |
13 | 1661529588 |
14 | 9333781872 |
15 | 52566230076 |
16 | 296697618432 |
17 | 1677889961028 |
18 | 9505151782288 |
19 | 53928746972812 |
20 | 306393243712384 |
21 | 1742920028025364 |
22 | 9925790375394096 |
23 | 56584659163097436 |
[1,4,16,76,384,2004,10672,57628,314368,1728292, 9560016,53144172,296642688,1661529588,9333781872, 52566230076,296697618432,1677889961028, 9505151782288,53928746972812,306393243712384, 1742920028025364,9925790375394096, 56584659163097436] |