n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 4 |
5 | 23 |
6 | 183 |
7 | 2051 |
8 | 34480 |
9 | 852316 |
10 | 31436447 |
11 | 1719054682 |
12 | 139749375351 |
13 | 16887682211104 |
14 | 3032513808121100 |
15 | 809442991768500675 |
16 | 321179427812462958356 |
17 | 189437827654558885755437 |
[0,0,0,4,23,183,2051,34480,852316,31436447, 1719054682,139749375351,16887682211104, 3032513808121100,809442991768500675, 321179427812462958356,189437827654558885755437] |