n | a(n) |
---|---|
0 | 1 |
1 | 18 |
2 | 235 |
3 | 2700 |
4 | 28981 |
5 | 298278 |
6 | 2984095 |
7 | 29253600 |
8 | 282456361 |
9 | 2695498938 |
10 | 25486623955 |
11 | 239196683700 |
12 | 2231306698141 |
13 | 20710052641998 |
14 | 191416812647815 |
15 | 1762962024789000 |
16 | 16188343910770321 |
17 | 148268580698287458 |
18 | 1355005110295423675 |
19 | 12359749064745505500 |
[1,18,235,2700,28981,298278,2984095,29253600, 282456361,2695498938,25486623955,239196683700, 2231306698141,20710052641998,191416812647815, 1762962024789000,16188343910770321, 148268580698287458,1355005110295423675, 12359749064745505500] |