n | a(n) |
---|---|
1 | 1 |
2 | 9 |
3 | 11 |
4 | 17 |
5 | 27 |
6 | 89 |
7 | 91 |
8 | 911 |
9 | 989 |
10 | 2777 |
11 | 2827 |
12 | 2877 |
13 | 9911 |
14 | 27877 |
15 | 28127 |
16 | 88189 |
17 | 88277 |
18 | 88877 |
19 | 98989 |
20 | 99891 |
21 | 172891 |
22 | 279127 |
23 | 282827 |
24 | 287891 |
25 | 988877 |
26 | 2879189 |
27 | 9989891 |
28 | 9998891 |
29 | 29711811 |
30 | 87919777 |
31 | 88978189 |
32 | 99899891 |
33 | 112818127 |
34 | 277817777 |
35 | 277871911 |
36 | 277987917 |
37 | 278781777 |
38 | 279781911 |
39 | 287919777 |
40 | 888812811 |
41 | 1727112877 |
42 | 2778718989 |
[1,9,11,17,27,89,91,911,989,2777,2827,2877,9911, 27877,28127,88189,88277,88877,98989,99891,172891, 279127,282827,287891,988877,2879189,9989891, 9998891,29711811,87919777,88978189,99899891, 112818127,277817777,277871911,277987917,278781777, 279781911,287919777,888812811,1727112877, 2778718989] |