n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 90 |
3 | 780 |
4 | 6660 |
5 | 56520 |
6 | 478440 |
7 | 4045680 |
8 | 34194960 |
9 | 288969120 |
10 | 2441780640 |
11 | 20632294080 |
12 | 174334109760 |
13 | 1473040494720 |
14 | 12446462643840 |
15 | 105166336884480 |
16 | 888602163298560 |
17 | 7508235853048320 |
18 | 63440765337623040 |
19 | 536042108460026880 |
[1,10,90,780,6660,56520,478440,4045680,34194960, 288969120,2441780640,20632294080,174334109760, 1473040494720,12446462643840,105166336884480, 888602163298560,7508235853048320, 63440765337623040,536042108460026880] |