n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 40 |
4 | 457 |
5 | 6995 |
6 | 136771 |
7 | 3299218 |
8 | 95668354 |
9 | 3268445951 |
10 | 129468914524 |
11 | 5868774803537 |
12 | 301122189141524 |
13 | 17327463910351045 |
14 | 1109375488487304027 |
15 | 78484513540137938209 |
16 | 6098627708074641312182 |
17 | 517736625823888411991202 |
18 | 47791900951140948275632148 |
[1,1,5,40,457,6995,136771,3299218,95668354, 3268445951,129468914524,5868774803537, 301122189141524,17327463910351045, 1109375488487304027,78484513540137938209, 6098627708074641312182,517736625823888411991202, 47791900951140948275632148] |