n | a(n) |
---|---|
1 | 4 |
2 | 6 |
3 | 8 |
4 | 48 |
5 | 84 |
6 | 444 |
7 | 446 |
8 | 464 |
9 | 488 |
10 | 648 |
11 | 666 |
12 | 668 |
13 | 684 |
14 | 686 |
15 | 848 |
16 | 866 |
17 | 884 |
18 | 888 |
19 | 4448 |
20 | 4466 |
21 | 4484 |
22 | 4646 |
23 | 4664 |
24 | 4844 |
25 | 6444 |
26 | 6446 |
27 | 6464 |
28 | 6468 |
29 | 6486 |
30 | 6644 |
31 | 6648 |
32 | 6666 |
33 | 6684 |
34 | 6846 |
35 | 6864 |
36 | 6888 |
37 | 8444 |
38 | 8448 |
39 | 8466 |
40 | 8484 |
41 | 8646 |
42 | 8664 |
43 | 8688 |
44 | 8844 |
45 | 8868 |
46 | 8886 |
47 | 44444 |
[4,6,8,48,84,444,446,464,488,648,666,668,684,686, 848,866,884,888,4448,4466,4484,4646,4664,4844, 6444,6446,6464,6468,6486,6644,6648,6666,6684,6846, 6864,6888,8444,8448,8466,8484,8646,8664,8688,8844, 8868,8886,44444] |