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) |
|---|---|
| 0 | 7 |
| 1 | 71 |
| 2 | 1171 |
| 3 | 117112 |
| 4 | 21127112 |
| 5 | 211271211221 |
| 6 | 112212211171211221 |
| 7 | 1122122111711322112212 |
| 8 | 21112212223112711322112212 |
| 9 | 21112212223112712112312311221321 |