n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 6 |
5 | 47 |
6 | 433 |
7 | 4826 |
8 | 63344 |
9 | 957206 |
10 | 16368226 |
11 | 312484331 |
12 | 6588211317 |
13 | 152035645781 |
14 | 3811750833515 |
15 | 103171389227156 |
16 | 2998418499414228 |
17 | 93127351040630156 |
18 | 3078376326065274609 |
19 | 107905191218919625781 |
[0,0,1,6,47,433,4826,63344,957206,16368226, 312484331,6588211317,152035645781,3811750833515, 103171389227156,2998418499414228, 93127351040630156,3078376326065274609, 107905191218919625781] |