n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 20 |
4 | 189 |
5 | 2304 |
6 | 34375 |
7 | 606528 |
8 | 12353145 |
9 | 285212672 |
10 | 7360989291 |
11 | 210000000000 |
12 | 6562168424053 |
13 | 222902511206400 |
14 | 8177627877990831 |
15 | 322248197941182464 |
16 | 13574710601806640625 |
17 | 608742554432415203328 |
18 | 28953409166021786746195 |
19 | 1455817098785971890290688 |
20 | 77158366570752229975835181 |
[1,1,3,20,189,2304,34375,606528,12353145, 285212672,7360989291,210000000000,6562168424053, 222902511206400,8177627877990831, 322248197941182464,13574710601806640625, 608742554432415203328,28953409166021786746195, 1455817098785971890290688, 77158366570752229975835181] |