n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 28 |
3 | 248 |
4 | 3976 |
5 | 52112 |
6 | 850144 |
7 | 13032896 |
8 | 217878616 |
9 | 3594283952 |
10 | 61577419168 |
11 | 1056910842176 |
12 | 18485891235904 |
13 | 325146542386304 |
14 | 5781811796793088 |
15 | 103413141115923968 |
16 | 1863085674077321176 |
17 | 33737014083314312624 |
[1,2,28,248,3976,52112,850144,13032896,217878616, 3594283952,61577419168,1056910842176, 18485891235904,325146542386304,5781811796793088, 103413141115923968,1863085674077321176, 33737014083314312624] |