n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 90 |
3 | 765 |
4 | 6264 |
5 | 49968 |
6 | 390960 |
7 | 3013740 |
8 | 22958640 |
9 | 173225952 |
10 | 1296640224 |
11 | 9640743120 |
12 | 71270772480 |
13 | 524277204480 |
14 | 3840015361536 |
15 | 28018969060032 |
16 | 203753553511680 |
17 | 1477232299307520 |
18 | 10681095982072320 |
19 | 77040637862485248 |
20 | 554445497303525376 |
[1,10,90,765,6264,49968,390960,3013740,22958640, 173225952,1296640224,9640743120,71270772480, 524277204480,3840015361536,28018969060032, 203753553511680,1477232299307520, 10681095982072320,77040637862485248, 554445497303525376] |