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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 11 |
| 4 | 223 |
| 5 | 1009 |
| 6 | 22111 |
| 7 | 100003 |
| 8 | 2211127 |
| 9 | 10000019 |
| 10 | 221111257 |
| 11 | 1000000009 |
| 12 | 22111111123 |
| 13 | 100000000019 |
| 14 | 2211111111227 |
| 15 | 10000000000051 |
| 16 | 221111111111197 |
| 17 | 1000000000000223 |
| 18 | 22111111111111117 |
| 19 | 100000000000000003 |
| 20 | 2211111111111111211 |
| 21 | 10000000000000000087 |
| 22 | 221111111111111111249 |
[2,3,11,223,1009,22111,100003,2211127,10000019, 221111257,1000000009,22111111123,100000000019, 2211111111227,10000000000051,221111111111197, 1000000000000223,22111111111111117, 100000000000000003,2211111111111111211, 10000000000000000087,221111111111111111249] |