n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 28 |
4 | 205 |
5 | 1856 |
6 | 19964 |
7 | 249005 |
8 | 3535613 |
9 | 56339884 |
10 | 996009280 |
11 | 19350090365 |
12 | 409850078356 |
13 | 9400728524669 |
14 | 232154433941057 |
15 | 6141705628777193 |
16 | 173295665869432733 |
17 | 5195039603196754564 |
18 | 164890990869273983108 |
19 | 5524278740902526776085 |
20 | 194815729875439415542760 |
[1,1,5,28,205,1856,19964,249005,3535613,56339884, 996009280,19350090365,409850078356,9400728524669, 232154433941057,6141705628777193, 173295665869432733,5195039603196754564, 164890990869273983108,5524278740902526776085, 194815729875439415542760] |