n | a(n) |
---|---|
1 | 21 |
2 | 31 |
3 | 41 |
4 | 51 |
5 | 61 |
6 | 71 |
7 | 81 |
8 | 91 |
9 | 421 |
10 | 931 |
11 | 3311 |
12 | 5111 |
13 | 5511 |
14 | 7711 |
15 | 8421 |
16 | 9731 |
17 | 9911 |
18 | 311111 |
19 | 444111 |
20 | 711111 |
21 | 777111 |
22 | 993311 |
23 | 8811111 |
24 | 51111111 |
25 | 55551111 |
26 | 91111111 |
27 | 93333311 |
28 | 99311111 |
29 | 99991111 |
30 | 441111111 |
31 | 6666611111 |
32 | 7111111111 |
33 | 9333311111 |
34 | 411111111111 |
35 | 555111111111 |
36 | 771111111111 |
37 | 777777111111 |
38 | 911111111111 |
[21,31,41,51,61,71,81,91,421,931,3311,5111,5511, 7711,8421,9731,9911,311111,444111,711111,777111, 993311,8811111,51111111,55551111,91111111, 93333311,99311111,99991111,441111111,6666611111, 7111111111,9333311111,411111111111,555111111111, 771111111111,777777111111,911111111111] |