n | a(n) |
---|---|
1 | 21 |
2 | 105 |
3 | 2211 |
4 | 9045 |
5 | 222111 |
6 | 306153 |
7 | 742371 |
8 | 890445 |
9 | 1050525 |
10 | 22221111 |
11 | 88904445 |
12 | 107905395 |
13 | 173808690 |
14 | 2222211111 |
15 | 8889044445 |
16 | 12141260706 |
17 | 15754278771 |
18 | 222222111111 |
19 | 888890444445 |
20 | 22222221111111 |
21 | 36734701836735 |
22 | 65306123265306 |
[21,105,2211,9045,222111,306153,742371,890445, 1050525,22221111,88904445,107905395,173808690, 2222211111,8889044445,12141260706,15754278771, 222222111111,888890444445,22222221111111, 36734701836735,65306123265306] |