n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 0 |
4 | 12 |
5 | 0 |
6 | 2144 |
7 | 0 |
8 | 9277152 |
9 | 0 |
10 | 934520913216 |
11 | 0 |
12 | 2152453777211211412 |
13 | 0 |
14 | 112252999240982874562527216 |
15 | 0 |
16 | 131765033045251672652319572331061144 |
17 | 0 |
18 | 3467852755777932367855581588111341658695967892 |
19 | 0 |
[0,2,0,12,0,2144,0,9277152,0,934520913216,0, 2152453777211211412,0,112252999240982874562527216, 0,131765033045251672652319572331061144,0, 3467852755777932367855581588111341658695967892,0] |