n | a(n) |
---|---|
2 | 2 |
3 | 6 |
4 | 34 |
5 | 217 |
6 | 1092 |
7 | 6616 |
8 | 39640 |
9 | 254593 |
10 | 1678272 |
11 | 11264666 |
12 | 77021822 |
13 | 533716317 |
14 | 3728816166 |
15 | 26255378070 |
16 | 186191393010 |
[2,6,34,217,1092,6616,39640,254593,1678272, 11264666,77021822,533716317,3728816166, 26255378070,186191393010] |