n | a(n) |
---|---|
2 | 1 |
3 | 4 |
4 | 12 |
5 | 44 |
6 | 236 |
7 | 2028 |
8 | 29164 |
9 | 719340 |
10 | 30943724 |
11 | 2350770668 |
12 | 318680099308 |
13 | 77793540073964 |
14 | 34472347123476972 |
15 | 27928291976711924204 |
16 | 41631598900551078537708 |
17 | 114829789064202679162399212 |
[1,4,12,44,236,2028,29164,719340,30943724, 2350770668,318680099308,77793540073964, 34472347123476972,27928291976711924204, 41631598900551078537708, 114829789064202679162399212] |