n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 16 |
4 | 147 |
5 | 1756 |
6 | 25910 |
7 | 453594 |
8 | 9184091 |
9 | 211075288 |
10 | 5427652794 |
11 | 154380255250 |
12 | 4812088559014 |
13 | 163110595450466 |
14 | 5973198636395003 |
15 | 235010723141883563 |
16 | 9886231689434154971 |
17 | 442799642855527526848 |
18 | 21038043034795035118742 |
19 | 1056802542597653892224802 |
20 | 55962024535834950971809754 |
[0,1,3,16,147,1756,25910,453594,9184091,211075288, 5427652794,154380255250,4812088559014, 163110595450466,5973198636395003, 235010723141883563,9886231689434154971, 442799642855527526848,21038043034795035118742, 1056802542597653892224802, 55962024535834950971809754] |