n | a(n) |
---|---|
0 | 2 |
1 | 4 |
2 | 14 |
3 | 96 |
4 | 1146 |
5 | 19996 |
6 | 456774 |
7 | 12851768 |
8 | 429005426 |
9 | 16560937396 |
10 | 725573492222 |
11 | 35563025442192 |
12 | 1927862644558314 |
13 | 114519148531129036 |
14 | 7397000893220477238 |
15 | 516159025386346265192 |
16 | 38694179227499561474786 |
17 | 3101357948259644187134308 |
[2,4,14,96,1146,19996,456774,12851768,429005426, 16560937396,725573492222,35563025442192, 1927862644558314,114519148531129036, 7397000893220477238,516159025386346265192, 38694179227499561474786,3101357948259644187134308] |