n | a(n) |
---|---|
0 | 1 |
1 | 20 |
2 | 257 |
3 | 2716 |
4 | 25809 |
5 | 230244 |
6 | 1975009 |
7 | 16524332 |
8 | 136058417 |
9 | 1108775668 |
10 | 8975764161 |
11 | 72350153148 |
12 | 581586939025 |
13 | 4666887733892 |
14 | 37407122372513 |
15 | 299621333407564 |
16 | 2398809490126833 |
17 | 19199738367402516 |
[1,20,257,2716,25809,230244,1975009,16524332, 136058417,1108775668,8975764161,72350153148, 581586939025,4666887733892,37407122372513, 299621333407564,2398809490126833, 19199738367402516] |