n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 40 |
4 | 44 |
5 | 400 |
6 | 404 |
7 | 440 |
8 | 444 |
9 | 4000 |
10 | 4004 |
11 | 4040 |
12 | 4044 |
13 | 4400 |
14 | 4404 |
15 | 4440 |
16 | 4444 |
17 | 40000 |
18 | 40004 |
19 | 40040 |
20 | 40044 |
21 | 40400 |
22 | 40404 |
23 | 40440 |
24 | 40444 |
25 | 44000 |
26 | 44004 |
27 | 44040 |
28 | 44044 |
29 | 44400 |
30 | 44404 |
31 | 44440 |
32 | 44444 |
33 | 400000 |
34 | 400004 |
35 | 400040 |
36 | 400044 |
37 | 400400 |
38 | 400404 |
39 | 400440 |
40 | 400444 |
[0,4,40,44,400,404,440,444,4000,4004,4040,4044, 4400,4404,4440,4444,40000,40004,40040,40044,40400, 40404,40440,40444,44000,44004,44040,44044,44400, 44404,44440,44444,400000,400004,400040,400044, 400400,400404,400440,400444] |