This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 42 |
| 2 | 4422 |
| 3 | 46440 |
| 4 | 464442 |
| 5 | 44642442 |
| 6 | 144444342 |
| 7 | 40447444340 |
| 8 | 2344449414440 |
| 9 | 42794944444440 |
| 10 | 443448440044440 |
| 11 | 24442434644444460 |
| 12 | 455758444444444440 |
| 13 | 34444442714441644442 |
| 14 | 44441704844441444442 |
| 15 | 14444904404444444646450 |
| 16 | 344407444483444494444942 |
| 17 | 1244444414842444444444506 |