n | a(n) |
---|---|
2 | 2 |
3 | 4 |
4 | 26 |
5 | 206 |
6 | 1311 |
7 | 7442 |
8 | 44452 |
9 | 281652 |
10 | 1791706 |
11 | 11399302 |
12 | 73600602 |
13 | 482406796 |
14 | 3197748646 |
15 | 21392739205 |
16 | 144427720544 |
[2,4,26,206,1311,7442,44452,281652,1791706, 11399302,73600602,482406796,3197748646, 21392739205,144427720544] |